A cardiac ultrasound in the US runs 400 to 800 dollars at a general practice and 700 to 1,200 at a board-certified cardiologist. The scan itself takes 20 to 40 minutes and the report adds another 10 to 15. Three groups of cats need one: a murmur found on a routine exam, a cat with labored breathing or an irregular rhythm, and a breeding or pre-anesthetic candidate from a predisposed breed. Once a cat starts cardiac medication, a recheck every 3 to 6 months is the usual standard.

What 400 to 800 Dollars Actually Buys

The fee covers more than a picture. A complete study includes 2D imaging, M-mode measurement of wall thickness in millimeters, color Doppler, and 6 to 10 standard views taken from both sides of the chest. The written report should list the left atrium to aorta ratio, fractional shortening, and a plain-language summary you can hand to your regular vet.

At the low end you get a 15 to 25 minute scan by a general practitioner who does 2 or 3 cardiac studies a week. At the top end you get a cardiologist, 30 to 40 minutes, Doppler, and a measurement set that another cardiologist can compare against 6 months later. For a first diagnosis, the difference matters; for a stable recheck, it matters less.

Three Indications, Three Different Clocks

A murmur is graded 1 to 6. Grade 1 to 2 in a kitten under 6 months is often innocent and can be rechecked at 6 to 9 months. Grade 3 or louder in an adult, or any new murmur in a cat over 8 years, deserves a scan within 2 to 4 weeks rather than 3 months.

Breathing changes move faster. A sleeping respiratory rate above 30 breaths per minute, open-mouth breathing, or a cat that stops eating for 24 hours with labored effort means same-day care, not a scheduled echo. The scan is part of that visit, not a substitute for it.

Screening is the slowest clock. Breeds with a known risk of hypertrophic cardiomyopathy — Maine Coon, Ragdoll, Persian, Sphynx — are commonly screened from 1 to 2 years of age and every 12 to 18 months after that. A pre-anesthetic murmur of grade 3 or higher also justifies a scan before elective surgery.

What the Same Scan Costs in Three Markets

Prices below are typical ranges for a complete study with a written report. They are not quotes, and the 1.5 to 3 times spread between a small clinic and a referral center exists in every country.

MarketSettingTypical rangeCurrencyWait for a slot
United StatesGeneral practice400 to 800USD3 to 10 days
United StatesBoard-certified cardiologist700 to 1,200USD1 to 4 weeks
United KingdomFirst-opinion practice250 to 450GBP2 to 7 days
United KingdomCardiology referral450 to 900GBP2 to 6 weeks
ChinaTier-3 city hospital600 to 1,800CNY1 to 5 days
ChinaSmaller city clinic300 to 700CNYsame day to 3 days

Two extras sit outside these numbers in most clinics: an after-hours surcharge of 1.5 to 2 times the daytime fee, and a sedation charge of 40 to 120 dollars for a cat that will not tolerate 20 minutes of lateral restraint.

Why the Range Is 1.5 to 3 Times Wide

City and hospital level explain most of the spread. A teaching hospital in a capital city charges 2 to 3 times what a two-vet practice in a smaller town charges for the same 25 minutes of machine time. Equipment age matters less than who holds the probe: a 10-year-old machine read by an experienced cardiologist beats a new one read by someone doing 2 scans a month.

Recorded measurements are what you are paying for. Ask for the left atrium to aorta ratio, the interventricular septum and free wall thickness in millimeters, and the actual images as files. Without those 3 items a recheck in 6 months cannot be compared, and you pay twice for the same information.

The 20 to 40 Minutes on the Table

Preparation takes 5 to 10 minutes: clipping a 5 by 5 cm window on each side of the chest, gel, and a towel roll to tilt the cat. Most cats need no sedation, which keeps the heart rate honest; roughly 3 in 10 need a light dose, and that alters heart rate enough that the report should say so.

Views come in a fixed order — 3 to 4 from the right side, 4 to 6 from the left — which is why the total lands between 20 and 40 minutes. A cat that panics will stretch it to 45 or 50, and results from a struggling cat are worth less than results from a calm one, so a 10 minute break is often better than a second attempt.

Recheck Interval: 3 to 6 Months

Six months is right for a stable cat with mild thickening and no medication. Three months is right after any dose change, after a first diagnosis, or when the left atrium is enlarged. A cat in heart failure is rechecked at 1 to 3 months, and one on 3 or more drugs may be seen every 4 to 8 weeks until stable.

Interval is a decision the vet makes from measurements, not a rule from a page. What you control is the 7-day log of sleeping respiratory rate that makes the decision possible: count breaths for 30 seconds while the cat sleeps, multiply by 2, write it down, and bring 14 days of entries to the appointment.

Add-Ons That Move the Bill

An NT-proBNP blood test costs 80 to 150 dollars and helps sort a murmur that might be functional from one that is not. An ECG adds 100 to 200, a chest X-ray 150 to 300, and a 24-hour Holter 400 to 700 for a cat with fainting spells. None of these replaces the ultrasound, and none is routine for a first, stable murmur.

Ask for an itemized estimate before the appointment, in writing, including the report fee. Clinics that quote 400 and bill 650 usually added Doppler, a second view set, and an interpretation fee that was never in the first number.

Before You Book

  • Count the sleeping respiratory rate for 3 nights and write down the average; above 30 per minute changes the plan.
  • Ask whether the person scanning holds a cardiology qualification, and how many studies they read per week.
  • Request the measurement set in millimeters, not just a conclusion sentence.
  • Get the images as files, so the 3 to 6 month recheck is a comparison rather than a fresh start.
  • Budget for 1 scan plus 2 rechecks in the first year, which is 3 visits rather than 1.

For how often a healthy cat sees a vet at all, see vet visit frequency and cost. If the diagnosis leads to fluid therapy or a transfusion, the numbers are in transfusion and dialysis cost. Both pages feed the same cost tool used to build an annual budget.

Frequently asked

How much does a cat echocardiogram cost?

In the US, 400 to 800 dollars at a general practice and 700 to 1,200 at a cardiologist. In the UK, 250 to 450 pounds at a first-opinion practice and 450 to 900 at a referral center. In China, 600 to 1,800 yuan in a tier-3 city hospital and 300 to 700 in a smaller city. After-hours work adds 1.5 to 2 times, and sedation adds 40 to 120 dollars.

Does my cat need to be sedated for the scan?

Most cats do not. Roughly 7 in 10 tolerate 20 to 40 minutes of lateral restraint with a towel roll, which keeps the heart rate honest and the measurements comparable. About 3 in 10 need a light dose, and because sedation changes heart rate the report should state that it was used.

How often should a cat with a heart murmur be rechecked?

A stable cat with mild thickening and no medication is usually rechecked at 6 months. Three months fits a first diagnosis, a dose change, or an enlarged left atrium. A cat in heart failure is seen at 1 to 3 months, and one on 3 or more drugs may need a visit every 4 to 8 weeks until stable.

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