How often should I measure a healthy animal?

For a healthy animal a few relaxed sessions a year are enough to build a personal baseline. It changes with a heart or airway condition under control: there the resting breathing rate, counted while the animal sleeps and always at the same hour, is one of the figures vets most often ask owners to track at home.

My dog will not let me take his temperature: what now?

Do not push. An animal that resists risks injury and gives you a stress distorted figure anyway. Record that the measurement was not possible and say so explicitly on the phone, because that is information rather than a gap. Separately, ask your vet to show you the technique in person during a routine visit, when nothing is urgent.

Are ear or infrared thermometers good enough?

They are more convenient but less reliable in dogs and cats, especially when decisions hinge on values close to the limits. If you use one, state it alongside the figure so the listener interprets the number knowing how it was taken. For comparisons over time, always use the same instrument.

Can I use a smart collar that counts heartbeats?

These devices are useful for trends across days and weeks, much less so for an emergency decision. Coat, movement and sensor position introduce large errors exactly when precision would matter. In an emergency count by hand and use the device to confirm the trend, not as the primary measurement.

What if the numbers are normal but the animal seems wrong to me?

You call anyway and you say precisely that. The perception of someone who lives with the animal every day is a recognised clinical signal, and more than one serious illness starts with vital signs still inside the range. Describe what has changed compared with usual, since when, and how quickly: those three pieces guide the decision more than the numbers.

Emergency procedures15 minLevel: IntermediateUpdated on August 3, 2026

Taking your pet's vital signs at home and recording them

How to count breathing and heart rate, read gum colour and take a temperature, with reference ranges and what to write down before you call the clinic.

Audience: Pet owners
Species: Dog, Cat
Scope: Valid everywhere

What you need before you start

Un termometro digitale dedicato all'animale e un lubrificante a base d'acqua
Un orologio o un cronometro con i secondi, anche quello del telefono
Una torcia piccola per guardare il colore delle gengive sempre con la stessa luce
Un foglio o la scheda dell'animale già aperta, per annotare mentre leggi e non dopo

Whoever answers the phone at a veterinary clinic has to decide within seconds whether your animal can wait until morning or needs to leave now, and they decide using the information you give them. The difference between a useless call and one that saves time is three or four numbers collected properly, each with a time next to it. Taking vital signs at home is not about reaching a diagnosis, which remains a veterinary act, and it must never delay departure when the animal is clearly unwell. It is about turning the phrase his breathing looks odd into something the person listening can act on.

When measuring helps and when you should just go

Vital signs are only measured well when there is time to measure them. If the animal is conscious, breathing, and the picture is unclear, five minutes of measurement are worth more than ten minutes of description. If instead it is unconscious, if breathing is noisy and laboured, if there is continuous bleeding or if something suspicious has been swallowed, you leave straight away and measure in the car with someone else driving.

Unclear picture, stable animal: measure, write it down, then call.
Clearly serious picture: call while someone prepares transport, and only measure if it slows nobody down.
Chronic condition under control: measure always at the same time of day, so values stay comparable.
After a demanding procedure or treatment: measure to have a baseline for the next check.

The sequence in seven steps

The order is deliberate: it starts with what you can see without touching, because simply approaching changes breathing and heart rate, and ends with the most intrusive measurements. If the animal becomes agitated halfway through, stop and report only what you collected up to that point.

Watch from a distance for thirty seconds
Before touching anything, look at posture, level of consciousness and the way it is breathing. An animal standing with its neck extended and elbows held away from the chest is working to breathe, and that observation outweighs any number. Note whether it responds to its name.
Count breaths at rest
Watch the chest or flank rise and fall: one rise and one fall make one breath. Count for thirty seconds and double it. The figure only means something if the animal is still and not panting from heat or excitement, otherwise you are counting panting rather than breathing.
Look at the colour of the gums
Lift the upper lip and light the gum above the canine tooth with the torch. The normal reference is an even pale pink. White, grey, bluish, yellowish or very bright red gums each mean something different and should be reported with the exact colour you saw.
Check capillary refill time
Press the gum with a fingertip until it blanches, lift the finger and count the seconds until colour returns. Over two seconds is worth reporting immediately. It is a simple measurement, but always use the same spot, otherwise comparisons over time mean nothing.
Count the heart rate
Rest a hand on the chest behind the left elbow, or find the pulse on the inside of the thigh. Count beats for fifteen seconds and multiply by four. If beats feel irregular, or if the pulse does not match the beats you feel on the chest, write it down: that is a clinically weighty piece of information.
Take the temperature only if you know how
Temperature is taken rectally with a lubricated digital thermometer, inserted a short way and held still until it beeps. It should be done by someone who has been shown how, with a second person holding the animal calmly. If the animal resists, if there is bloody diarrhoea, or if it has had recent surgery in that area, skip this step.
Check hydration and write everything down now
Gently lift the skin between the shoulder blades and let go: normally it springs straight back. Then write the values down immediately with the exact time, before you put the thermometer away. Numbers held in your head for five minutes have already drifted.

Indicative reference ranges for dogs and cats

The ranges below are general references for adult animals, awake and at rest. They shift with size, age, breed and fitness: a large dog has a slower heart than a toy breed, a puppy runs faster rates than an adult. Use them to see whether a value sits far from normal, not to decide on your own that everything is fine.

Indicative ranges in adult animals at rest
Parameter	Adult dog	Adult cat	How it is measured
Breaths per minute	from 10 to 30	from 20 to 30	Count chest movements for 30 seconds and double
Beats per minute	from 60 to 140 depending on size	from 140 to 220	Hand behind the left elbow or femoral pulse, 15 seconds times four
Rectal temperature	from 38.0 to 39.2 degrees	from 38.0 to 39.2 degrees	Lubricated digital thermometer, held until it beeps
Gum colour	even pale pink	even pale pink	Gum above the canine, always under the same light
Capillary refill time	under 2 seconds	under 2 seconds	Press the gum with a finger, then count the return of colour
Skin tent test	immediate return	immediate return	Lift the skin between the shoulder blades and release
Weight	compared with the last recorded figure	compared with the last recorded figure	Same scale, same time of day, dry animal

Recording values so that they are useful to someone else

A number without context is not data. Gum colour seen under a bathroom light at eleven at night and the same gums seen by torchlight in the garden are not comparable, and a heart rate counted while the animal struggles describes nothing. So every measurement is written alongside three pieces of surrounding information.

What to write next to every measurement
Field	Example	Why it matters
Exact time	22:15	Lets anyone reconstruct how fast the picture is changing
Value and unit	36 breaths per minute	Prevents confusion between a thirty second count and a per minute figure
Method	counted on the flank, animal lying down and awake	Makes the measurement repeatable and comparable
Context	thirty minutes after a run in the park	Explains high values that are not necessarily abnormal
Who measured	taken by the person who lives with the animal	Shows how practised the hand behind the figure was

Write as you measure, not at the end, or the first two values blur together.
Use the same words for colours every time, so notes from different months stay comparable.
Photograph gums and posture if there is time: an image with a timestamp counts as data.
Keep the normal readings too, because your personal baseline is built from those.

When to stop measuring and leave

Some observations end the data gathering phase and start the transport phase. In these cases the call is made from the car, measuring stops, and no number changes the decision.

A cat breathing with its mouth open, even briefly and even if it has not been running.
Gums that are white, grey, bluish or a very dark red.
Capillary refill time clearly longer than two seconds.
Noisy breathing with an extended neck and elbows held away from the chest.
An animal that does not answer to its name, staggers, or cannot get up.
Repeated retching with nothing coming up, with a tense swollen abdomen.
Temperature below 37.5 degrees or above 40 degrees.
Bleeding that continues despite pressure held for several minutes.

Measurement mistakes that waste everyone's time

Mistake, effect on the figure and correction
Mistake	Effect	Correction
Counting breaths while the animal pants	A very high figure with no meaning	Wait five calm minutes and count again
Counting for ten seconds and multiplying by six	Every missed beat is amplified	Count at least fifteen seconds for the heart and thirty for breathing
Checking gums under a different light each time	Colours that cannot be compared over time	Use the same torch and the same spot on the gum
Taking a temperature from a resisting animal	Risk of injury and a distorted value anyway	Stop, record that it was not possible, and say so on the phone
Writing figures from memory after the call	Rounded values and wrong times	Write during the sequence, even on the back of your hand
Reporting only the worst value	The clinic cannot see the trend	Report every value collected, each with its own time

Frequently asked questions

How often should I measure a healthy animal?: For a healthy animal a few relaxed sessions a year are enough to build a personal baseline. It changes with a heart or airway condition under control: there the resting breathing rate, counted while the animal sleeps and always at the same hour, is one of the figures vets most often ask owners to track at home.
My dog will not let me take his temperature: what now?: Do not push. An animal that resists risks injury and gives you a stress distorted figure anyway. Record that the measurement was not possible and say so explicitly on the phone, because that is information rather than a gap. Separately, ask your vet to show you the technique in person during a routine visit, when nothing is urgent.
Are ear or infrared thermometers good enough?: They are more convenient but less reliable in dogs and cats, especially when decisions hinge on values close to the limits. If you use one, state it alongside the figure so the listener interprets the number knowing how it was taken. For comparisons over time, always use the same instrument.
Can I use a smart collar that counts heartbeats?: These devices are useful for trends across days and weeks, much less so for an emergency decision. Coat, movement and sensor position introduce large errors exactly when precision would matter. In an emergency count by hand and use the device to confirm the trend, not as the primary measurement.
What if the numbers are normal but the animal seems wrong to me?: You call anyway and you say precisely that. The perception of someone who lives with the animal every day is a recognised clinical signal, and more than one serious illness starts with vital signs still inside the range. Describe what has changed compared with usual, since when, and how quickly: those three pieces guide the decision more than the numbers.

What to do next

Measure in this order: observation, breathing, gum colour, capillary refill, heart rate, temperature only if you have been shown how, hydration. Write each value with its time and method as you collect it, not afterwards. If any of the listed warning signs appears, close the sequence, call from the car and leave the second reading to the clinic.