Kidney Disease in Cats: Symptoms, Staging and What It Costs
The kidneys lose function slowly and permanently, and the cruel arithmetic is that they hide it until most of them are gone. This is an emergency and needs a vet now if any of these are true: A cat that has eaten nothing for 24 hours or more; Repeated vomiting, or vomiting with obvious weakness or collapse.
Is this an emergency?
Worst first. Find the highest rung that matches what you can actually see, and act on that one — not on the one you hope applies.
- Emergency — go nowGo to an emergency vet or the nearest open clinic now. Do not wait for morning.
- A cat that has eaten nothing for 24 hours or more
- Repeated vomiting, or vomiting with obvious weakness or collapse
- Sudden blindness, dilated pupils that do not respond to light, or bumping into things
- Seizures, disorientation or extreme lethargy
- Very pale or white gums
- Straining in the litter tray and producing nothing
A cat that stops eating is an emergency in its own right, separate from the kidneys - cats that go without food even for short periods can develop serious secondary liver disease, and Cornell flags exactly this when a cat refuses a new therapeutic diet. Sudden blindness is the other item that owners rarely connect: Cornell reports approximately 60% of cats with chronic kidney disease develop hypertension, and hypertension can cause sudden vision changes, neurological signs and heart problems. Straining with no urine is not this disease at all - it is a urinary blockage, which is measured in hours.
- Same dayGet an appointment today. If your own practice is full, an urgent-care clinic counts.
- Drinking noticeably more and producing much larger, heavier litter clumps
- Weight loss over weeks, especially with a scruffy, unkempt coat
- Reduced appetite, nausea, or drooling
- Lethargy and hiding in a senior cat
- Bad breath with a chemical or ammonia smell
Merck: increased drinking and urinating are usually the earliest signs attributable to kidney dysfunction, and they are not evident until about two-thirds of the nephrons are already lost. So these are not early signs in any biological sense - they are the first visible ones, and by the time they show, the disease has a substantial head start. Cornell notes cats with CKD are also at risk of anaemia because the failing kidney makes less erythropoietin, which is why pale gums and profound lethargy belong on this list.
- Routine — book an appointmentBook in the next few days and keep an eye out for anything on a rung above.
- A cat over seven with no signs, due for a senior health check
- A diagnosed cat due for its staging bloods, urine protein and blood pressure
- A cat that has recently had a raised SDMA on a screening panel but is otherwise well
This is the rung where the disease is actually found early enough to matter. Cornell reports creatinine does not generally rise until a cat has lost almost 75% of kidney function, whereas SDMA rises when about 40% has been lost - potentially allowing the diagnosis to be made sooner. Cornell's other practical instruction is that interpretation should rest on at least two blood and urine samples taken within two weeks of one another, from a stable, well-hydrated cat, because a single value in a sick or dehydrated cat overstates the stage.
- Monitor at homeNo visit needed yet. Watch for anything on a rung above and re-read this page if it appears.
- A senior or geriatric cat on a stable management plan
- A cat receiving subcutaneous fluids at home
- An older cat with normal bloods, being rechecked on schedule
Weigh the cat on kitchen scales monthly and write it down - weight loss is the most sensitive thing an owner can measure at home and it usually precedes any change the owner would notice by eye. Cornell notes the only known risk factor for developing CKD in cats is age, which is why the monitoring here is scheduled rather than triggered by a symptom.
Key facts
- When it is an emergency
- A cat that has eaten nothing for 24 hours or more; Repeated vomiting, or vomiting with obvious weakness or collapse; Sudden blindness, dilated pupils that do not respond to light, or bumping into things; Seizures, disorientation or extreme lethargy; Very pale or white gums; Straining in the litter tray and producing nothing
- Affects
- Cats
- Also known as
- kidney disease in cat symptoms, CKD in cats, chronic renal failure in cats, feline kidney failure, renal insufficiency in cats
- How common it is
- 1.2% (95% CI 1.1-1.3) — 353,448 cats attending 244 UK primary-care clinics between January 2012 and December 2013, VetCompass
- Cost range on this page
- $56–$880 — from routine vet checkup (wellness exam) to cat ultrasound
- Biggest single bill
- Cat Ultrasound, $383–$880, $483 typical
- Covered by pet insurance
- Usually, under an accident-and-illness policy taken out before the signs started. 70-90% of the covered bill after the annual deductible, following the coverage status of the underlying condition.
- Outlook
- There is no cure - Cornell describes CKD as progressive with no definitive cure, so treatment aims to slow it and to keep quality of life high.
- Clinical facts last verified
- 2026-08-29
The kidney does not warn you. Merck puts the first sign an owner can see — drinking and urinating more — at roughly two-thirds of the nephrons already lost, and states that no clinical signs directly caused by the disease appear until at least 75% has gone.
Two-thirds gone before the first symptom
Everything difficult about this disease follows from that arithmetic. The "early signs" every article lists are not early in any biological sense; they are the first visible ones, arriving well past the midpoint of a process that cannot be reversed, because the kidney has no capacity to regrow lost nephrons.
Cornell's age figures show how ordinary that is in old cats: up to 40% of cats over ten and 80% of cats over fifteen. Those are published estimates rather than counted cohorts, and we label them as such — the counted figure, from 353,448 UK primary-care cats, is a 1.2% diagnosed prevalence across cats of all ages, which understates the burden in geriatric cats considerably.
The practical consequence is that a cat that looks completely well can be most of the way through this disease. That is the entire argument for testing senior cats on a schedule rather than waiting for a symptom to justify the blood draw.
SDMA moves the diagnosis forward by a third of a kidney
Creatinine has historically been the specific marker of kidney function, and Cornell notes it does not generally rise until almost 75% of function is lost. SDMA rises at roughly 40% loss.
That gap is the whole value of a senior wellness panel. It is also why a thin old cat can have a normal creatinine with real kidney disease — creatinine is skewed by muscle mass and by dehydration, and SDMA is less affected by both.
Low urine specific gravity is the other early marker, and Cornell calls poorly concentrated urine one of the earliest indicators in the cat. It costs almost nothing to run alongside the blood, and it is falsely lowered by recent fluids, which is worth knowing before a sample is taken in hospital.
A stage taken on a dehydrated cat is the wrong stage
Both Cornell and Merck insist on the same condition: staging is done on at least two blood and urine samples, taken within about two weeks of one another, from a stable, well-hydrated cat.
Take the samples during a crisis and the numbers come out too high, which places the cat in a worse IRIS stage than it belongs in — and the stage is what sets the prognosis and the treatment plan. A cat rehydrated and re-tested a fortnight later is sometimes a materially less sick cat than the first panel suggested.
If your cat was diagnosed on a single sample taken while it was vomiting and dehydrated, that is the conversation to have at the recheck.
Most cats with this diagnosis are not actually monitored
This is the finding that should change what you ask for. In the same VetCompass cohort, among cats diagnosed with chronic kidney disease, only 32.6% had serum creatinine followed up, 14.9% had a urine protein:creatinine ratio measured, and 25.6% had their blood pressure taken.
None of those are optional extras. Merck describes proteinuria as an important finding and a negative prognostic indicator, and says all dogs and cats with CKD should have the protein:creatinine ratio evaluated where there is no inflammation or blood to confound it. Cornell calls blood pressure measurement an important part of the medical evaluation.
So the three things to name at the next appointment are a repeat creatinine and SDMA, a urine protein:creatinine ratio, and a blood pressure reading. They are inexpensive relative to everything else on this page, and they are what turns a label into a plan.
It also means published survival figures from real practice describe cats that were mostly not monitored. That cuts both ways, and it is a reason to read them as a spread rather than as a forecast.
Sudden blindness is a kidney sign
A cat that walks into furniture with wide, unresponsive pupils is an emergency tonight, and the cause is often blood pressure rather than eyes. Cornell reports that approximately 60% of cats with chronic kidney disease develop hypertension, and that hypertension causes sudden vision changes, neurological signs and heart problems.
That is the strongest single argument for having blood pressure measured at the same visit as the bloods. It is cheap, and it is treatable with oral medication — Cornell names telmisartan, an angiotensin II receptor blocker approved for controlling blood pressure in cats.
One sign on the emergency list is not this disease at all. A cat straining in the tray and producing nothing has a urinary blockage, which is measured in hours rather than months and is an entirely different appointment.
How long does a cat live after being diagnosed?
The honest answer is a wide spread, not an average. The VetCompass cohort gives a median survival after diagnosis of 388 days, with an interquartile range of 88 to 1,042 days — so a quarter of cats died within three months and a quarter lived beyond nearly three years.
Stage at diagnosis is what drives that spread. Cornell reports that cats diagnosed at IRIS stage 2 have a mean survival of two to three years in many studies, while cats diagnosed at stage 4 survive on average less than six months. Cats losing more protein in the urine, with higher blood phosphorus and lower red cell counts, do worse.
Which puts the one lever an owner has in plain view: timing. Nothing on this page cures the disease, and the difference between a stage 2 and a stage 4 diagnosis is mostly whether anyone was testing before the cat looked ill.
The diet has the best evidence, and the worst failure mode
Cornell calls dietary modification an important and proven aspect of treatment and generally the first change recommended, reporting studies in which cats eating a prescription kidney diet lived two to three times longer than those on standard food. On this page, that is the strongest evidence for any intervention.
The catch is stated just as plainly. Many cats refuse these diets, the transition has to be gradual, and a cat that stops eating during the switch can develop significant health problems quickly — cats that go without food even briefly can develop serious secondary liver disease.
So the rule is that the diet is worth real effort and is never worth a hunger strike. A cat eating something is ahead of a cat eating nothing, and a switch that stalls is a phone call rather than a battle of wills. The same principle applies to the painful mouth that stops an older cat eating, which is worth ruling out before the diet is blamed.
Cornell is equally candid about the rest of the list. Phosphate binders, potassium supplementation, antioxidants, alkalinisation, appetite stimulants and anti-nausea drugs may help particular cats — and Cornell says these approaches have not all been fully validated and that controlled studies are needed. Haemodialysis and transplantation it calls controversial, complex, expensive and unproven.
What this costs, and the bill we do not yet price
The section below prices three real things: the consultation and senior panel where this is found, the emergency visit for the cat that has stopped eating or gone blind, and abdominal ultrasound to look for the treatable causes underneath — stones, obstruction, infection or a mass — rather than accepting a chronic label on one raised creatinine.
What it does not price is what this disease actually costs a household over years: a therapeutic diet, repeated blood and urine tests, blood pressure medication, and often subcutaneous fluids given at home every one to three days. We do not yet publish a researched recurring-cost record for feline CKD, and we would rather say so than publish a guess.
Plan for the shape rather than the total. The diagnosis is a modest cost; the management is a small recurring cost that runs for the rest of the cat's life; and the expensive events are the crises, which are the part early monitoring is meant to prevent.
Why chronic kidney disease in cats happens
- Age and cumulative nephron loss
- Cornell: the only known risk factor for the development of chronic kidney disease in cats is age, which is why regular monitoring of all senior cats matters so much. The kidney has no capacity to regrow lost nephrons, so every insult across a cat's life is additive and permanent.
- Loss of the ability to concentrate urine
- Cornell describes the sequence: as the kidneys lose the ability to concentrate urine, the cat passes greater volumes and drinks more to compensate. Merck adds the threshold - that stage is usually not reached until about two-thirds of the nephrons are gone, which is why the first sign an owner sees is a mid-course event rather than an early one.
- Protein loss through the damaged kidney
- Merck: proteinuria is an important finding and a negative prognostic indicator in dogs and cats with chronic kidney disease, partly because protein in the tubule is itself damaging and partly because it marks a more rapidly progressive form. It is measured with a urine protein:creatinine ratio, and Merck notes a dipstick alone is not specific enough because many positives are false.
- High blood pressure
- The kidneys help regulate blood pressure, and Cornell reports approximately 60% of cats with CKD develop hypertension. It is both a consequence and an accelerant, and it is the mechanism behind the sudden blindness on the emergency rung.
- Other kidney diseases that end in the same place
- Polycystic kidney disease, kidney stones and infection of the kidney, glomerular disease and past acute injury all converge on the same chronic endpoint. This matters practically because Cornell recommends culturing a urine sample in suspected cases specifically to rule out a bacterial infection of the urinary tract, which is treatable.
How a vet diagnoses chronic kidney disease in cats
Not every test below is run on every animal. Which ones are depends on what the examination finds, and each one is priced in the cost section further down.
- Physical examination, weight and blood pressure
- Weight trend and body condition are the most sensitive clinical markers of progression, and Cornell calls blood pressure measurement an important part of the medical evaluation because roughly 60% of affected cats become hypertensive. What it costs
- Blood urea nitrogen, creatinine and SDMA
- Cornell: creatinine has historically been the most specific indicator of kidney function but does not generally rise until almost 75% of function is lost, and it is skewed by dehydration and by muscle mass, so a very thin cat can have normal creatinine despite reduced function. SDMA is less affected by both and rises when about 40% of function is lost, which is the reason it appears on senior panels.
- Urinalysis with specific gravity and urine protein:creatinine ratio
- Cornell: a low urine specific gravity, meaning poorly concentrated urine, can be one of the earliest indicators of CKD in the cat, though it is falsely lowered by recent fluids. The protein:creatinine ratio tests protein loss and is important in determining severity. Merck adds that all dogs and cats with CKD should have the ratio evaluated, provided there is no urinary inflammation or blood to confound it.
- Urine culture
- Cornell: culturing a urine sample is important in suspected cases to rule out a bacterial urinary tract infection. It is the cheapest treatable finding in the whole work-up.
- Abdominal ultrasound
- Cornell lists imaging - ultrasound and radiographs - among the studies useful in evaluating a cat with suspected CKD. Ultrasound shows kidney size, shape, architecture, stones and cysts, and separates chronic shrunken kidneys from an obstruction or a mass. What it costs
- IRIS staging
- Merck: the International Renal Interest Society stages CKD into four stages on creatinine and SDMA, measured on at least two occasions in a stable, hydrated patient, then substages on proteinuria and on systolic blood pressure. The staging is what turns a diagnosis into a treatment plan and a prognosis, and both sources stress it must be done when the cat is hydrated, or the stage comes out too high.
How chronic kidney disease in cats is treated
- Stabilisation of the crashing cat
- For the cat that has stopped eating, is vomiting, or has gone blind from hypertension: intravenous fluids in hospital, anti-nausea treatment, and blood pressure control. Cornell notes that during times of illness, intravenous fluids in the clinic may be necessary to maintain hydration until a cat can be stabilised. What stabilisation of the crashing cat costs
- A therapeutic kidney diet
- Cornell calls dietary modification an important and proven aspect of treatment and generally the first change recommended, and reports that some studies show cats eating a prescription kidney diet live 2 to 3 times longer than those on standard commercial food. Cornell is equally clear about the catch: many cats refuse these diets, the transition must be gradual, and a cat that stops eating during the switch can develop significant health problems quickly. What a therapeutic kidney diet costs
- Keeping the cat hydrated
- Cornell: dehydration speeds up damage to the kidneys and worsens clinical signs. At home that means wet food, multiple clean water sources and often a fountain; in more advanced disease it means fluids given under the skin, which many owners learn to do every one to three days with guidance from their vet. This is the single largest recurring time cost of the disease.
- Controlling blood pressure and protein loss
- Cornell: hypertension and urinary protein loss are generally treated with oral medication, including telmisartan, an angiotensin II receptor blocker available as a liquid and FDA-approved for controlling blood pressure in cats. Merck adds that blocking the renin-angiotensin system with an ACE inhibitor or an angiotensin receptor blocker reduces proteinuria but can lower filtration, so creatinine, potassium and blood pressure are monitored on treatment.
- Treating the anaemia
- Cornell: anaemia was historically treated by replacing erythropoietin or darbepoetin by injection, and an oral medication, molidustat, is now available to stimulate red cell production in cats with CKD, provided blood pressure is adequately controlled.
- Investigating with imaging
- Ultrasound to look for the treatable things underneath - stones, obstruction, infection, a mass - rather than accepting a chronic label on the first raised creatinine. What investigating with imaging costs
- Adjuncts, and how strong the evidence is
- Cornell lists phosphate binders, potassium supplementation, antioxidants, alkalinisation, appetite stimulants and anti-nausea medication as therapies that may help particular cats, and then says plainly that these approaches have not all been fully validated and that controlled studies are needed to determine which offer substantial benefit. Cornell says the same of haemodialysis and kidney transplantation, calling them controversial, complex and expensive, and unproven by study.
Outlook and prevention
There is no cure - Cornell describes CKD as progressive with no definitive cure, so treatment aims to slow it and to keep quality of life high. Stage at diagnosis drives everything: Cornell reports cats diagnosed at IRIS stage 2 have a mean survival of two to three years in many studies, while cats diagnosed at stage 4 survive on average less than six months. A UK primary-care study of 353,448 cats found a median survival after diagnosis of 388 days, with an interquartile range of 88 to 1,042 days, which is the honest spread behind those averages. Cornell notes cats losing more protein in the urine, with higher blood phosphorus and lower red cell counts, do worse. The one lever an owner has is timing, and the earlier the diagnosis, the better the outcome.
The disease itself cannot be prevented; Cornell says the only known risk factor is age. What can be changed is how late it is found. Screen senior cats on a schedule rather than waiting for signs, because Merck's thresholds mean a cat that looks normal can already have lost most of its kidney function, and SDMA on a senior panel flags the problem at roughly 40% loss instead of 75%. Keep water available in several places and feed wet food where the cat will take it, since Cornell notes dehydration accelerates kidney damage. Treat urinary infections and dental disease properly rather than repeatedly. And have blood pressure measured at the same visit as the bloods - it is cheap, and roughly 60% of affected cats will need it treated.
How common it is: 1.2% (95% CI 1.1-1.3) — 353,448 cats attending 244 UK primary-care clinics between January 2012 and December 2013, VetCompass. Source.
What treating chronic kidney disease in cats costs
Costs for chronic kidney disease in cats run from $56 for routine vet checkup (wellness exam) to $880 for cat ultrasound. A severe case can run past the top of that range — what treatment adds depends on how bad it gets.
Each block below is one procedure we price in full: the national range, the region-by-region table behind it, and how every row was sourced. Rows marked published come from a real price for that geography; rows marked indexed are the national range scaled by a cited regional cost index, and we label them rather than blending the two.
Routine Vet Checkup (Wellness Exam)
$56–$130Routine Vet Checkup (Wellness Exam) costs $56 to $130 in the United States, and $66 is the typical price.
| Region (basis) | Low | Typical | High |
|---|---|---|---|
| Northeast (published) | $64 | $76 | $101 |
| Midwest (published) | $58 | $63 | $67 |
| South (published) | $57 | $63 | $98 |
| West (published) | $63 | $72 | $129 |
| Hawaii (most expensive jurisdiction) (published) | $127 | $128 | $129 |
| Mississippi and West Virginia (least expensive jurisdictions) (published) | $57 | $57 | $58 |
| Published private-practice fee schedules, 8 clinics in 8 states (published) | $65 | $78 | $92 |
published — a real price for that geography was found and cited. indexed — the national range scaled by a cited regional cost index, because no geography-specific price is published. All 7 rows are published prices. Prices last verified 2026-08-28. Full sourcing in Sources.
How each regional row was sourced
- Northeast (published)
- Published state averages in the Northeast run from Pennsylvania $64 (dog) and $66 (cat) to Massachusetts $99 and $101, median $76 for dogs against a $66 national median (CareCredit/ASQ360 2025-2026 50-state survey).
- Midwest (published)
- Published state averages in the Midwest run from Kansas $58 (dog) and $60 (cat) to Wisconsin $66 and $67, median $63 for dogs. This is the tightest region in the country - only $9 separates its cheapest state from its most expensive (CareCredit/ASQ360 2025-2026).
- South (published)
- Published state averages in the South run from Mississippi and West Virginia at $57 (dog) and $58 (cat) to the District of Columbia at $97 and $98, median $63 for dogs. The region contains both the cheapest jurisdictions in the country and the second most expensive (CareCredit/ASQ360 2025-2026).
- West (published)
- Published state averages in the West run from New Mexico $63 (dog) and $65 (cat) to Hawaii $127 and $129, median $72 for dogs (CareCredit/ASQ360 2025-2026).
- Hawaii (most expensive jurisdiction) (published)
- $127 for a dog and $129 for a cat, the highest of all 51 US jurisdictions in the 2025-2026 CareCredit/ASQ360 survey - 2.2 times the Mississippi and West Virginia figure for the identical examination.
- Mississippi and West Virginia (least expensive jurisdictions) (published)
- Both states publish at $57 for a dog and $58 for a cat, the joint lowest of all 51 US jurisdictions in the 2025-2026 CareCredit/ASQ360 survey.
- Published private-practice fee schedules, 8 clinics in 8 states (published)
- Actual posted exam fees, not survey averages: Rocket City Mobile Vet, Huntsville AL $65; Tequesta Veterinary Clinic, FL $69 ($74 for a new patient); Cane Bay Veterinary Clinic, Summerville SC $74; Midvalley Animal Clinic, Taylorsville UT $75; Love City Vet, Philadelphia PA $78; Modern Animal $85 pay-as-you-go; Dallas Veterinary Clinic, TX $90; Covina Animal Hospital, CA $90; Kenmore Veterinary Hospital, WA $92. Every one of these sits above its own state's survey median.
The itemized invoice, the drivers behind the spread and the full sourcing are on our routine vet checkup (wellness exam) cost breakdown.
Veterinary Urgent Care Visit
$85–$150Veterinary Urgent Care Visit costs $85 to $150 in the United States, and $124 is the typical price.
| Region (basis) | Low | Typical | High |
|---|---|---|---|
| Northeast (published) | $114 | $114 | $114 |
| Midwest (published) | $125 | $125 | $125 |
| South (published) | $85 | $105 | $124 |
| West (published) | $120 | $149 | $150 |
| Published urgent-care exam fees, seven clinics in seven states (published) | $85 | $124 | $150 |
| Routine wellness exam at the same seven clinics, for comparison (published) | $65 | $78 | $92 |
| Emergency-room exam, nationwide, for comparison (published) | $107 | $135 | $260 |
published — a real price for that geography was found and cited. indexed — the national range scaled by a cited regional cost index, because no geography-specific price is published. All 7 rows are published prices. Prices last verified 2026-08-28. Full sourcing in Sources.
How each regional row was sourced
- Northeast (published)
- One published fee found in this region: Love City Vet in Philadelphia charges $114 for a same-day urgent care exam against $78 for a wellness or sick visit at the same practice - a 46% premium for seeing you today.
- Midwest (published)
- One published fee found in this region: Animal Urgent Center in Ann Arbor, Michigan charges $125 for an urgent care examination, and publishes its diagnostic menu alongside it.
- South (published)
- Rocket City Mobile Vet in Huntsville, Alabama charges $85 for a same-day urgent care exam against $65 for a standard examination. Cane Bay Veterinary Clinic in Summerville, South Carolina charges $124 against $74 for a preventive or sick exam and $159 for an emergency exam.
- West (published)
- Covina Animal Hospital in California charges $120 against a $90 annual exam and a $155 emergency exam. Kenmore Veterinary Hospital in Washington charges $149 against a $92 routine office visit. Midvalley Animal Clinic in Utah charges $150 against a $75 initial doctor consultation - the widest published gap in the survey, exactly double.
- Published urgent-care exam fees, seven clinics in seven states (published)
- Huntsville AL $85, Love City Vet Philadelphia PA $114, Covina Animal Hospital CA $120, Cane Bay Veterinary Clinic SC $124, Animal Urgent Center Ann Arbor MI $125, Kenmore Veterinary Hospital WA $149, Midvalley Animal Clinic UT $150. Median $124.
- Routine wellness exam at the same seven clinics, for comparison (published)
- Huntsville AL $65, Cane Bay SC $74, Midvalley UT $75, Love City PA $78, Covina CA $90, Kenmore WA $92. The urgent-care premium at these practices runs from 31% (Rocket City, $65 to $85) to 100% (Midvalley, $75 to $150).
- Emergency-room exam, nationwide, for comparison (published)
- CareCredit/ASQ360 2025-2026 put the ER exam at a national average of $135 for dogs and $143 for cats, ranging $107-$246 for dogs and $113-$260 for cats. By census region the dog ER exam medians are $146 Northeast, $137 West, $120 South and $120 Midwest, from $108 in Mississippi to $241 in Hawaii.
The itemized invoice, the drivers behind the spread and the full sourcing are on our veterinary urgent care visit cost breakdown.
Cat Ultrasound
$383–$880Cat Ultrasound costs $383 to $880 in the United States, and $483 is the typical price.
| Region (basis) | Low | Typical | High |
|---|---|---|---|
| Northeast (indexed) | $410 | $520 | $950 |
| Midwest (indexed) | $340 | $430 | $780 |
| South (indexed) | $340 | $430 | $780 |
| West (indexed) | $390 | $490 | $890 |
| Williamston, Michigan (published) | $600 | $650 | $1,200 |
published — a real price for that geography was found and cited. indexed — the national range scaled by a cited regional cost index, because no geography-specific price is published. 1 of 5 rows are published prices; 4 are indexed. Prices last verified 2026-08-28. Full sourcing in Sources.
How each regional row was sourced
- Northeast (indexed)
- No published price specific to this region was found for this procedure. The national range is shifted by the 7.5% above national regional cost ratio measured across eight CareCredit/ASQ360 2025 50-state price tables, where this ratio held to within half a percent for every procedure surveyed. Treat as an estimate.
- Midwest (indexed)
- No published price specific to this region was found for this procedure. The national range is shifted by the 11.6% below national regional cost ratio measured across eight CareCredit/ASQ360 2025 50-state price tables, where this ratio held to within half a percent for every procedure surveyed. Treat as an estimate.
- South (indexed)
- No published price specific to this region was found for this procedure. The national range is shifted by the 11.3% below national regional cost ratio measured across eight CareCredit/ASQ360 2025 50-state price tables, where this ratio held to within half a percent for every procedure surveyed. Treat as an estimate.
- West (indexed)
- No published price specific to this region was found for this procedure. The national range is shifted by the 1.5% above national regional cost ratio measured across eight CareCredit/ASQ360 2025 50-state price tables, where this ratio held to within half a percent for every procedure surveyed. Treat as an estimate.
- Williamston, Michigan (published)
- Animal Ultrasound Services publishes a $100 office call, a $600 abdominal ultrasound, $50 sedation and $450 per organ for an ultrasound-guided fine needle aspirate; its schedule does not price cats differently from dogs.
The itemized invoice, the drivers behind the spread and the full sourcing are on our cat ultrasound cost breakdown.
What the invoice for cat ultrasound looks like
Cat Ultrasound is the largest single bill on this page, so this is the one worth reading line by line. Clinics quote a bundled number and itemize afterwards; this is the decomposition.
| Line item | Low | High |
|---|---|---|
| Office call or consultation Published at $100 by Animal Ultrasound Services; CareCredit's emergency-cost page puts a cat emergency exam at $143 nationally (range $115 Mississippi to $257 Hawaii) | $100 | $260 |
| Abdominal ultrasound study Animal Ultrasound Services publishes $600; CareCredit's $483 national average is measured on dogs | $383 | $880 |
| Sedation Published at $50 by Animal Ultrasound Services; CareCredit prices injectable sedation for cats at $123 nationally | $50 | $260 |
| Ultrasound-guided fine needle aspirate, per organ Published at $450 per organ including cytology submission by Animal Ultrasound Services | $300 | $450 |
| Recheck scan within 30 days Published at $300 by Animal Ultrasound Services | $250 | $300 |
| Radiologist interpretation and report Bundled into the study fee at most practices; estimated where billed separately | $150 | $350 |
Not every line appears on every invoice — practices bundle differently, and some of these are only billed when the procedure turns up something. Sourcing for each figure is in Sources.
Does pet insurance cover chronic kidney disease in cats?
Cat Ultrasound is normally covered by a standard accident-and-illness policy. Imaging ordered to investigate a covered illness is reimbursable under a standard accident-and-illness policy, and carriers do not price or treat feline diagnostics differently from canine ones. Embrace lists diagnostic testing for covered illnesses among what it pays for. The scan inherits the status of the condition it is investigating: a cat already showing signs of kidney disease or weight loss before enrolment will find both the illness and the ultrasound that diagnosed it excluded as pre-existing. Screening scans in a well cat are preventive care and are not covered.
What you would get back: 70-90% of the covered bill after the annual deductible, following the coverage status of the underlying condition.
The catch, and it is the one that matters here: every US carrier excludes pre-existing conditions. If your animal has already been seen for chronic kidney disease in cats — or for signs a vet later links to it — a policy bought today will not pay for this episode. Cover is something you buy before the diagnosis, which is why the $56–$880 above is worth knowing while your pet is still well.
Waiting periods, and what each carrier counts as pre-existing, differ enough that the only useful answer is a side-by-side: our pet insurance comparison for cat ultrasound shows which policies pay for it, how long the wait is, and how each one words the pre-existing exclusion.
Common questions
Is chronic kidney disease in cats an emergency?
Treat it as an emergency if any of these are true: A cat that has eaten nothing for 24 hours or more; Repeated vomiting, or vomiting with obvious weakness or collapse; Sudden blindness, dilated pupils that do not respond to light, or bumping into things; Seizures, disorientation or extreme lethargy; Very pale or white gums; Straining in the litter tray and producing nothing. A cat that stops eating is an emergency in its own right, separate from the kidneys - cats that go without food even for short periods can develop serious secondary liver disease, and Cornell flags exactly this when a cat refuses a new therapeutic diet. Sudden blindness is the other item that owners rarely connect: Cornell reports approximately 60% of cats with chronic kidney disease develop hypertension, and hypertension can cause sudden vision changes, neurological signs and heart problems. Straining with no urine is not this disease at all - it is a urinary blockage, which is measured in hours.
How much does it cost to treat chronic kidney disease in cats?
Costs for chronic kidney disease in cats run from $56 for routine vet checkup (wellness exam) to $880 for cat ultrasound. A severe case can run past the top of that range — what treatment adds depends on how bad it gets.
How is chronic kidney disease in cats diagnosed?
Physical examination, weight and blood pressure: Weight trend and body condition are the most sensitive clinical markers of progression, and Cornell calls blood pressure measurement an important part of the medical evaluation because roughly 60% of affected cats become hypertensive. Blood urea nitrogen, creatinine and SDMA: Cornell: creatinine has historically been the most specific indicator of kidney function but does not generally rise until almost 75% of function is lost, and it is skewed by dehydration and by muscle mass, so a very thin cat can have normal creatinine despite reduced function. SDMA is less affected by both and rises when about 40% of function is lost, which is the reason it appears on senior panels. Urinalysis with specific gravity and urine protein:creatinine ratio: Cornell: a low urine specific gravity, meaning poorly concentrated urine, can be one of the earliest indicators of CKD in the cat, though it is falsely lowered by recent fluids. The protein:creatinine ratio tests protein loss and is important in determining severity. Merck adds that all dogs and cats with CKD should have the ratio evaluated, provided there is no urinary inflammation or blood to confound it. Urine culture: Cornell: culturing a urine sample is important in suspected cases to rule out a bacterial urinary tract infection. It is the cheapest treatable finding in the whole work-up. Abdominal ultrasound: Cornell lists imaging - ultrasound and radiographs - among the studies useful in evaluating a cat with suspected CKD. Ultrasound shows kidney size, shape, architecture, stones and cysts, and separates chronic shrunken kidneys from an obstruction or a mass. IRIS staging: Merck: the International Renal Interest Society stages CKD into four stages on creatinine and SDMA, measured on at least two occasions in a stable, hydrated patient, then substages on proteinuria and on systolic blood pressure. The staging is what turns a diagnosis into a treatment plan and a prognosis, and both sources stress it must be done when the cat is hydrated, or the stage comes out too high.
Does pet insurance cover chronic kidney disease in cats?
Cat Ultrasound is normally covered by an accident-and-illness policy taken out before the signs started. Imaging ordered to investigate a covered illness is reimbursable under a standard accident-and-illness policy, and carriers do not price or treat feline diagnostics differently from canine ones. Embrace lists diagnostic testing for covered illnesses among what it pays for. The scan inherits the status of the condition it is investigating: a cat already showing signs of kidney disease or weight loss before enrolment will find both the illness and the ultrasound that diagnosed it excluded as pre-existing. Screening scans in a well cat are preventive care and are not covered.
What is the outlook for a pet with chronic kidney disease in cats?
There is no cure - Cornell describes CKD as progressive with no definitive cure, so treatment aims to slow it and to keep quality of life high. Stage at diagnosis drives everything: Cornell reports cats diagnosed at IRIS stage 2 have a mean survival of two to three years in many studies, while cats diagnosed at stage 4 survive on average less than six months. A UK primary-care study of 353,448 cats found a median survival after diagnosis of 388 days, with an interquartile range of 88 to 1,042 days, which is the honest spread behind those averages. Cornell notes cats losing more protein in the urine, with higher blood phosphorus and lower red cell counts, do worse. The one lever an owner has is timing, and the earlier the diagnosis, the better the outcome.
Can chronic kidney disease in cats be prevented?
The disease itself cannot be prevented; Cornell says the only known risk factor is age. What can be changed is how late it is found. Screen senior cats on a schedule rather than waiting for signs, because Merck's thresholds mean a cat that looks normal can already have lost most of its kidney function, and SDMA on a senior panel flags the problem at roughly 40% loss instead of 75%. Keep water available in several places and feed wet food where the cat will take it, since Cornell notes dehydration accelerates kidney damage. Treat urinary infections and dental disease properly rather than repeatedly. And have blood pressure measured at the same visit as the bloods - it is cheap, and roughly 60% of affected cats will need it treated.
What should I know about chronic kidney disease in cats?
The kidneys lose function slowly and permanently, and the cruel arithmetic is that they hide it until most of them are gone. Costs for chronic kidney disease in cats run from $56 for routine vet checkup (wellness exam) to $880 for cat ultrasound. A severe case can run past the top of that range — what treatment adds depends on how bad it gets.
How long does a cat live after being diagnosed?
The honest answer is a wide spread, not an average. The VetCompass cohort gives a median survival after diagnosis of 388 days, with an interquartile range of 88 to 1,042 days — so a quarter of cats died within three months and a quarter lived beyond nearly three years.
Related conditions and costs
What treating it costs, procedure by procedure
- routine vet checkup (wellness exam) cost $56–$130 — The annual physical examination a healthy dog or cat gets - vitals, ears, eyes, mouth, coat and skin - priced as the exam fee alone, before any test or vaccine is added to the bill.
- veterinary urgent care visit cost $85–$150 — A same-day visit for a problem that cannot wait for an appointment but is not life-threatening, priced between a routine exam and an emergency-room exam at every clinic that publishes all three.
- cat ultrasound cost $383–$880 — An ultrasound scan for a cat, most often a full abdominal study, sometimes with sedation and an ultrasound-guided sample taken at the same time.
Related conditions
- signs and symptoms of cat diabetes — A disease in which the cat's cells stop responding properly to insulin, so glucose stays in the blood instead of feeding the body.
- urinary blockage cat — A group of conditions causing painful, frequent, bloody or unproductive urination in cats.
- worm cat symptoms — Worms in cats are usually silent, and the signs owners are told to look for - a dull coat, a potbelly, vomiting, diarrhoea - are the same signs as a dozen other things.
- why is my cat meowing so much — Excessive meowing is a sign, not a disease, and it is the sign this dataset can be most useful about — because its differentials range from a cat that has learned meowing produces breakfast to a male cat that cannot pass urine and will die within about two days without treatment.
- cat coughing — A cough in a cat is a lower-airway problem until proved otherwise, and the commonest cause is asthma - an allergic narrowing of the small airways that Cornell puts at 1 to 5% of cats.
- dog dementia treatment — An age-related degenerative brain disease that Cornell describes as causing deterioration similar to Alzheimer's disease in people, with beta-amyloid accumulating and neurons dying.
- dog colitis medication — Inflammation of the colon, which shows up as small, frequent, urgent stools carrying mucus and often fresh red blood, with straining.
- dog coughing — A cough is a sign, not a diagnosis, and the same dry hack can come from an infection that clears itself in two weeks or from a failing heart valve.
- dehydrated dog treatment — Dehydration is not a disease, it is the measurable consequence of one, and the numbers behind it are published rather than guessed.
- dog diabetic symptoms — The pancreas stops making enough insulin, so glucose stays in the blood instead of feeding the cells, spills into the urine and drags water with it.
- dog diarrhea — Loose or watery stool, with or without blood, and the sixth most frequently recorded disorder in dogs in primary practice.
- dog ear infection treatment — Inflammation of the ear canal, almost always with a yeast or bacterial overgrowth on top of it.
- dog pregnancy symptoms — The signs owners read as pregnancy - weight gain, a swollen belly, mammary enlargement, milk, nesting behaviour - are produced just as reliably by a false pregnancy, and there is no home test that tells them apart.
- dog UTI symptoms — A bacterial infection of the bladder, usually Escherichia coli travelling up the urethra from the perineum.
- dog vomiting and diarrhea — Sudden vomiting, usually with diarrhoea, from an inflamed stomach and intestine.
- dog vomiting blood — Blood in a dog's vomit - fresh red, dark clots, or the brown grit that looks like coffee grounds because the stomach has already digested it.
- dog eye allergies — A red, weeping, itchy eye is what owners call an eye allergy, and environmental irritants and allergens genuinely are, in Merck's words, common causes of conjunctivitis in all species.
- hip dysplasia in dogs — An inherited malformation in which the hip joint is too loose, so the ball grinds in the socket and arthritis follows.
- ivdd in dogs — A disc between the vertebrae ruptures or bulges and presses on the spinal cord, causing pain, wobbliness or paralysis.
- kennel cough in dogs — A contagious inflammation of the windpipe and airways caused by a mix of viruses and bacteria, not by one organism.
- dog limping — Limping means something painful is interfering with the normal use of a limb, and Cornell's framing is that it deserves veterinary attention rather than a wait-and-see.
- parvo in dogs — A virus that destroys the lining of a puppy's intestine and the bone marrow that makes its white blood cells, producing vomiting and bloody diarrhoea that can kill in days.
- dog seizures — A burst of abnormal electrical activity in the brain, which in its classic form drops the dog on its side with stiff, paddling limbs, frothing, loss of consciousness and often loss of bladder and bowel control.
- staph infection in puppies — Crusty pustules on a puppy's hairless belly and groin, caused by the dog's own resident bacterium overgrowing.
- dog wound treatment — Cleaning and closing a wound is mostly a timing decision, and the two things owners get wrong are both correctable in the first hour.
- dog skin yeast infection — Malassezia yeast lives on normal dog skin and only causes disease when something changes the skin it lives on.
- dog vomiting yellow — Yellow vomit is bile that has refluxed from the duodenum back into an empty stomach, and it is a description rather than a diagnosis.
- cat teeth disease — Three overlapping diseases, not one: gingivitis, which is reversible; periodontitis, which is not; and tooth resorption, in which the tooth dissolves from the inside out and which Cornell calls the most common cause of tooth loss in cats.
- symptoms of blocked anal glands in dogs — Two small scent sacs sit either side of the anus and normally empty when a dog passes a firm stool.
- dog skin allergies — A lifelong immune reaction to ordinary environmental substances - pollens, moulds, dust mites, dander - that shows up as itching rather than sneezing.
- worms in dogs — Four different worms with four different stories, grouped together only because they all live in a dog's gut.
- ringworm in dogs — Ringworm is a fungal infection of the hair and the surface of the skin, and the name is the first thing that misleads.
- yeast infection in dogs — Malassezia pachydermatis is a yeast that lives on normal dog skin and in normal ears.
Sources
Clinical sources
What this condition is, how it is diagnosed and when it becomes an emergency, from veterinary colleges, professional bodies and peer-reviewed primary-care studies.
- Chronic Kidney Disease — Cornell Feline Health Center, Cornell University College of Veterinary Medicine, 2025.
- Renal Dysfunction in Dogs and Cats — Merck Veterinary Manual, 2026.
- Chronic kidney disease in cats attending primary care practice in the UK: a VetCompass study — Conroy M, Brodbelt DC, O'Neill D, Chang YM, Elliott J; Veterinary Record 184(17):526, 2019.
Price sources
Where every figure in the cost section comes from. These are US fee schedules, published price surveys and carrier claims data — reported by us, and outside the scope of the clinical review noted at the top of the page.
- Veterinary Exam and Procedure Costs, including 50-state routine visit tables — CareCredit (Synchrony), 2025-2026 Synchrony Average Procedural Cost Study conducted by ASQ360 Market Research, 2026.
- Lack of online price transparency of small animal veterinary clinics in the United States — Adams, Gilley, Morris and Wisnieski, Frontiers in Veterinary Science, DOI 10.3389/fvets.2026.1788878, 2026.
- About Our Pricing — Cane Bay Veterinary Clinic, Summerville, South Carolina, 2026.
- Pricing and Transparency — Dallas Veterinary Clinic, Dallas, Texas, 2025.
- Veterinary Clinic Price List — Tequesta Veterinary Clinic, Florida, 2026.
- Philadelphia Pricing — Love City Vet, Philadelphia, Pennsylvania, 2026.
- Pricing — Kenmore Veterinary Hospital, Kenmore, Washington, 2026.
- Service Pricing — Covina Animal Hospital, Covina, California, 2026.
- Price List — Midvalley Animal Clinic, Taylorsville, Utah, 2026.
- Prices — Rocket City Mobile Vet, Huntsville, Alabama, 2026.
- Pricing — Modern Animal, 2026.
- Pricing Transparency — Animal Urgent Center, Ann Arbor, Michigan, 2026.
- How Much Does an Emergency Vet Visit Cost? — CareCredit (Synchrony), 2025-2026 Synchrony Average Procedural Cost Study conducted by ASQ360 Market Research, 2026.
- The Emerging Role of Urgent Care — MSPCA-Angell Animal Medical Center, 2026.
- Fees and Services — Animal Ultrasound Services, Williamston, Michigan, 2026.
- How Much Does a Dog Ultrasound Cost? — CareCredit (Synchrony), 2025.
- Radiology Service — Triangle Veterinary Referral Hospital, Durham, North Carolina, 2026.
- What Pet Insurance Covers — Embrace Pet Insurance, 2026.
- Information for Pet Owners: Veterinary Diagnostic Imaging — American College of Veterinary Radiology (ACVR), 2026.