ECG Screening Cost: 10 Seconds to 24 Hours

A resting ECG for a cat costs 75 to 150 in the US, 60 to 120 GBP in the UK, and 100 to 250 CNY in China, and that buys 10 seconds of trace plus 10 to 20 minutes of a veterinarian reading it. A 24-hour Holter runs 250 to 450, because it records 1,440 minutes instead of 10 seconds and takes 10 to 30 minutes to scan. The gap between those 2 numbers, 175 to 300, is the price of catching an arrhythmia that only happens 3 or 4 times a day.

Three charges, and what each one is for

The table splits the visit into the recording, the reading, and the conversation. Most owners are quoted only the first, then surprised by the second on the invoice, which is why the estimate should name all 3 lines before the cat is clipped.

Charge	Recording time	US (USD)	UK (GBP)	China (CNY)
Resting ECG, 6 leads	10 seconds, 15-20 minute visit	75-150	60-120	100-250
24-hour Holter	1,440 minutes, fitted and removed	250-450	200-380	600-1,500
7-day event recorder	10,080 minutes, owner-triggered	350-600	300-520	900-2,000
Reading and report	10-30 minutes, report in 1-3 days	60-150	50-120	150-400
Cardiology consult	30 minutes, same day or by video	100-250	90-200	200-600

Currency moves the total by a factor of 2 to 3: the same 10-second trace plus a reading is 135 to 300 in the US and 250 to 650 CNY in China, which converts to roughly 35 to 90 dollars. The UK sits between the two at 110 to 240 GBP. The pattern holds on the Holter row, where the hardware is imported everywhere and the reading time is the part that is priced locally.

What 10 seconds can and cannot show

Ten seconds holds 23 to 37 beats at a cat rate of 140 to 220 per minute, and about 27 if the rate is a calm 160. That is enough to measure rate, rhythm, and the shape of the QRS complex, and enough to catch a persistent problem such as a slow, irregular rhythm or a constant block. It is not enough to catch anything intermittent: a cat with a 4-second run of racing beats twice a day spends 8 seconds of 86,400 in that rhythm, which is 1 in 10,800.

24 hours on a Holter: 1,440 minutes of data

The cat wears a small recorder in a vest for a full day, and the owner writes down the times it slept, ate, played, and coughed. Those notes are what make 1,440 minutes readable, because a burst at 03:40 is worth more when the log says the cat was asleep. Fitting takes 20 to 30 minutes and often needs a light sedation; removal is 10 minutes. A study-quality recording needs under 5% artifact, and a cat that chews the leads can push that to 30%.

The reading fee: 10 to 30 minutes of a trained eye

Reading is not a printout. The veterinarian measures the PR and QT intervals, counts beats per hour, marks every pause over 2 seconds, and decides whether the finding explains the fainting episode. On a Holter that is 10 to 30 minutes of screen time plus a written report in 1 to 3 days. A 60 to 150 charge for that is 4 to 8 per minute, which is cheaper than the 100 to 250 for a 30-minute consult and is the line owners most often try to remove.

Artifact: why 30% of traces get repeated

Cats purr, shiver, and breathe at 20 to 30 times a minute, and all 3 write noise onto a 10-second strip. Loose electrodes add a wandering baseline; a wet patch of gel adds spikes that look like beats. When artifact covers more than 2 of the 6 leads, the trace is repeated, and the second attempt is usually billed at 40 to 60% of the first. Clipping 4 small patches and waiting 5 minutes for a purring cat to settle is the cheapest 75 an owner will ever save.

Screening before anesthesia: 3 questions

An ECG before a dental or an eye operation is 75 to 150 and is not routine for every cat. It earns its place when there are 3 signs: a murmur heard on 2 separate visits, a resting rate over 220 or under 140, or a breed known for heart muscle disease. A cat with none of the 3 and a normal exam is often cleared on auscultation alone, and a 10-second strip adds little.

When a 75 test turns into a 450 workup

An abnormal strip usually leads to an ultrasound of the heart at 250 to 450, plus a blood pressure reading at 20 to 40 and a thyroid test at 40 to 90. That is the normal path and it is not upselling: the ECG shows the rhythm, the ultrasound shows the muscle, and the 2 answer different questions. Ask for the written report of each before agreeing to the next test, since a normal ultrasound makes the Holter easy to skip.

Five things to ask for

How many leads, and how many seconds, the quoted ECG records: 6 leads and 10 seconds is the floor.
Whether the reading is included or billed at 60 to 150 on top.
Whether the report comes with measurements, not only a sentence saying normal.
How much artifact the last 10 traces at that clinic had, which is a fair question and rarely asked.
What the next step costs if the strip is abnormal: 250 to 450 for ultrasound is the usual answer.

For the imaging side of the same visit, our page on echo screening breaks down the 250 to 450 ultrasound, and visit frequency explains why a cat with a stable murmur is seen every 6 to 12 months rather than every 3. Run your own total through the cost calculator before the appointment.

Frequently asked

Is a 10-second ECG enough before anesthesia?

For a cat with a normal heart listen, a normal rate between 140 and 220, and no murmur on 2 visits, a 10-second strip adds little and many practices skip it. It is worth the 75 to 150 when there is a murmur, an arrhythmia felt on palpation, or a breed with a known risk, and in those cases the strip is usually followed by a 250 to 450 ultrasound.

Why does the Holter cost 4 times a resting ECG?

Because it records 1,440 minutes instead of 10 seconds, and every minute has to be scanned by software and then checked by a person. The hardware is a 250 to 450 rental in most clinics, the fitting needs 20 to 30 minutes and often a light sedation, and the reading takes 10 to 30 minutes on top of that.

Can I skip the reading fee and just get the printout?

The printout alone rarely answers the question, since a rhythm strip needs interval measurements, a beat count per hour, and a pause count to mean anything. If cost is the issue, ask for the measurements on the report rather than the fee removed, and ask whether a video consult at 100 to 250 replaces the in-person 30-minute visit.