Home checks
How to Count Your Pet's Resting Breathing Rate
A simple home check that helps vets monitor heart disease and spot trouble early.

AI-generated editorial image; illustrative, not a clinical demonstration or documentary photograph.
Resting breathing count: a quick guide
| Situation or check | Practical next step |
|---|---|
| When to count | While your pet is asleep or resting calmly in a comfortable room. |
| How to count | One rise and fall equals one breath; count 60 seconds, or 30 seconds × 2. |
| Typical sleeping rate | Many healthy dogs and cats stay under 30 per minute; your vet may set a personal limit. |
| Count rising above your pet's usual | Recount when settled and call your vet if it stays high. |
| Open-mouth breathing in a cat, effort, blue or grey gums | Emergency: call a vet now; do not keep counting. |
A count supports monitoring agreed with your vet. It cannot rule out illness, and medicines should only be changed on veterinary advice.
Use the count as monitoring, not diagnosis
Veterinarians sometimes ask owners to monitor sleeping respiratory rate in dogs and cats, particularly when assessing or managing heart disease. A trend can help identify a change worth investigating. It does not diagnose heart failure, identify its cause or show that every illness has been excluded. Pain, fever, heat and respiratory disease can also affect breathing.
Ask the clinic whether this measure is appropriate for your pet, when to record it and what findings should trigger a call. This guide concerns dogs and cats; its numerical expectations should not be applied to birds, rabbits or reptiles. An animal struggling to breathe needs help now, not a carefully completed monitoring chart.
Choose a genuinely resting moment
Watch when the pet is sleeping comfortably in a normal-temperature room. Avoid counting straight after exercise, excitement, grooming, eating or a stressful event. Dogs that are panting and cats that are purring are poor candidates for an interpretable sleeping count. Wait for a suitable moment if the animal is otherwise well.
Observe without touching, waking or crowding the animal. Chest or flank movement may be easier to see from the side. Dreaming can cause temporary irregularity; record a settled period instead. If the breathing remains unusually fast or appears effortful, do not repeatedly wait for a better reading to avoid calling the clinic.
Count one complete breathing cycle
One rise and fall of the chest represents one breath, not two. Count for a full minute when possible. Alternatively, count for thirty seconds and multiply by two. For example, twelve breaths in thirty seconds corresponds to twenty-four breaths per minute. Shorter counts magnify counting errors, especially when the pattern is irregular.
Use a timer and write down the result immediately. If uncertain, take another count after a settled interval, provided there are no urgent signs. A brief video can help the vet understand the pattern, but should not delay care. Consumer devices and apps are not a substitute for professional interpretation.
Record context as well as the number
Keep the date, time, count, whether the pet was asleep and any signs such as coughing, appetite change or reduced activity. Note a warm room, recent excitement or a missed medicine dose without assuming it explains everything. A consistent method makes a series of measurements more useful than scattered readings collected under different conditions.
Many healthy sleeping dogs and cats breathe fewer than thirty times per minute, but this is not a universal safety boundary. Your vet may set a patient-specific action threshold. A sustained increase from the pet's established baseline can matter even when a single number looks acceptable. Discuss how often to monitor rather than repeatedly waking the animal.
Know when a count must not delay help
Open-mouth breathing in a cat, marked breathing effort, collapse, inability to settle comfortably or blue-grey gums warrants urgent veterinary contact. A dog may pant normally after activity, but unexplained breathing difficulty at rest is concerning. Gum colour can be hard to assess, and normal-looking colour does not rule out danger.
If readings repeatedly exceed the agreed limit or rise unexpectedly, call according to the monitoring plan. Tell the clinic the actual counts and associated signs. Do not increase a diuretic, stop medicine or start oxygen or other treatment unless the veterinarian has specifically instructed you to do so.
Review the plan after clinical changes
Bring the record to follow-up appointments and ask whether the threshold or recording frequency needs updating. New symptoms, a medication change or another illness can alter interpretation. A reassuring count is only one observation: worsening weakness, persistent coughing or loss of appetite still deserves professional advice even without a high reading.
Set up a simple breathing log
A breathing log is most useful when it is easy to keep and easy for your vet to read. A notebook, a printed sheet or a phone note all work; consistency matters more than the format. Cardiologists who ask owners to monitor usually want a few counts a week at first, taken in the same way, so they can see a baseline and spot a rising trend.
Research on dogs and cats whose heart failure was controlled with medicine found that most breathed fewer than 30 times a minute while asleep, which is why that figure is often used as a starting point. Your vet may set a different number for your pet, and a steady rise above its own usual rate matters even below that figure.
- Write the date, time and breaths per minute straight away
- Note whether the pet was deeply asleep or resting quietly awake
- Add anything unusual: a hot room, a missed dose, coughing, reduced appetite
- Take the log or a photo of it to every check-up
- Agree with your vet the number that should prompt a call
Frequently asked questions
- Is a rise and fall one breath or two?
- It is one complete breath. Count for a minute, or count for thirty seconds and double the result.
- Does fewer than thirty mean my pet is definitely safe?
- No. Symptoms, baseline and the individual veterinary monitoring plan matter; a number cannot exclude every problem.
- Can I count while my cat purrs?
- Wait for comfortable sleep without purring if the cat is otherwise well; purring can complicate observation.
- Should I change heart medication after a high count?
- Only under explicit veterinary instructions. Contact the clinic with the readings and symptoms.
- How often should I count?
- Follow your vet's plan. Many ask for a few counts a week to set a baseline, then regular checks, with extra counts if your pet seems unwell.
References
- Home breathing-rate monitoring — VCA Animal Hospitals
- Pet emergency and first-aid guidance — AVMA
- Sleeping and resting respiratory rates in dogs and cats with medically controlled left-sided congestive heart failure — The Veterinary Journal (PubMed)
- Monitoring your pet's respiratory rate — Cardiac Education Group