TPR stands for temperature, pulse, and respiration, the three basic vital signs that tell you how a dog is doing physically. A healthy dog’s normal ranges are: temperature of 101 to 102.5°F, heart rate of 70 to 120 beats per minute, and respiratory rate of 18 to 34 breaths per minute at rest. Checking these at home takes just a few minutes once you know the technique.
What You Need Before You Start
Gather your supplies so you’re not scrambling mid-process. You’ll need a digital thermometer (dedicated for pet use only), petroleum jelly or water-based lubricant, a timer or phone with a stopwatch, and some high-value treats like peanut butter, squeeze cheese, or canned food for distraction. A helper makes everything easier, especially for the temperature portion.
Skip glass thermometers. They take longer to get a reading, carry a higher risk of breakage, and digital versions beep when they’re done, usually within 30 to 60 seconds.
How to Take Your Dog’s Temperature
Rectal temperature is the standard method and gives the most reliable reading. Have your helper hold the dog gently from the side or behind, keeping the dog’s head facing forward. Offering a smear of peanut butter on a plate or lick mat works well as a distraction during the process. Move slowly and stay calm. Dogs pick up on nervous energy, and the calmer you are, the more cooperative they’ll be.
Lubricate the tip of the digital thermometer with petroleum jelly. Lift or gently move the tail to one side. Insert the thermometer into the rectum about one inch for small dogs and two to three inches for large or giant breeds. Never force it. If you feel resistance, give your dog a few seconds to relax before trying again. Try to avoid inserting directly into stool, as that can throw off the reading. Wait for the beep, then gently remove and read the display.
A normal reading falls between 101 and 102.5°F. Anything above 103°F or below 100°F warrants a call to your vet.
If your dog becomes aggressive or panicked at any point, stop. No temperature reading is worth a bite injury to you or stress injury to your dog.
What About Ear Thermometers?
Infrared ear thermometers exist for dogs, and they’re better tolerated. In one study of 88 dogs, nearly 90% tolerated ear measurements well, compared to only about 68% for rectal. However, the two methods don’t produce interchangeable results. Ear readings can differ from rectal readings by more than a full degree Fahrenheit in either direction for an individual dog, which is too much variation to rely on clinically. Ear thermometers can be useful for tracking trends at home, but rectal temperature remains the gold standard when accuracy matters.
How to Check Your Dog’s Pulse
The easiest place to find a dog’s pulse is the femoral artery, located on the inner thigh where the back leg meets the body. Have your dog stand or lie on their side. Place two or three fingertips (not your thumb, which has its own pulse) against the inner thigh, pressing gently into the crease of the groin area. Press firmly enough to compress the area, then gradually lighten your pressure until you feel a rhythmic pulsing under your fingers.
Once you’ve found the pulse, count the beats for 15 seconds and multiply by four to get beats per minute. Alternatively, count for a full 60 seconds if you want a more precise number or if the rhythm seems irregular.
Normal resting heart rate for dogs is 70 to 120 beats per minute. Smaller dogs tend to run at the higher end of that range, and large breeds sit closer to the lower end. Puppies can have faster rates. Beyond just the number, pay attention to whether the rhythm feels steady or erratic. A consistently irregular pulse is worth mentioning to your vet.
How to Count Respirations
This is the simplest of the three to measure and the only one you can do without touching your dog at all. Watch your dog’s chest while they’re resting or sleeping. One complete rise and fall of the chest counts as one breath. Count these for a full 60 seconds.
The key is measuring at rest, not after a walk, play session, or excitement. Panting doesn’t count as normal respirations. Wait until your dog is calm, ideally lying down quietly or napping. Don’t measure while your dog is dreaming, since the twitching and rapid breathing of dream sleep will skew the count.
A normal resting respiratory rate is 18 to 34 breaths per minute. If your dog consistently breathes faster than 40 breaths per minute at rest, that’s a red flag worth investigating.
Keeping Your Dog Calm and Safe
The best approach is minimal restraint. Use only as much holding as you actually need for what your dog is doing right now, not what you think they might do. Work from beside or behind your dog rather than hovering over their face. Avoid direct eye contact, which many dogs find confrontational. Move about half as fast as your natural instinct tells you to.
Food is your best ally. Offering something delicious during the entire process keeps most dogs focused on something positive. For dogs that aren’t food-motivated, gentle massage or a favorite toy can work as a distraction. If your dog is truly anxious, placing a towel gently over their head can reduce visual reactivity and help them settle.
For the temperature check specifically, consider using a muzzle if your dog has ever snapped when uncomfortable. Make sure the muzzle is loose enough that your dog can still pant and get their tongue out. A helper who cups one hand under the dog’s jawbone while placing the other hand across the back of the head gives good control of the head’s direction without gripping the muzzle itself.
Knowing Your Dog’s Baseline
TPR values are most useful when you know what’s normal for your specific dog. Take a few readings over different days when your dog is healthy and relaxed. Write them down. Dogs vary individually, and knowing that your dog’s resting temperature is always 101.8°F or their heart rate sits around 90 beats per minute gives you a personal baseline to compare against when something seems off.
After each use, clean and disinfect your thermometer thoroughly before storing it. Label it clearly so no one accidentally uses it for humans.
Warning Signs in Vital Signs
Beyond the numbers themselves, certain patterns signal trouble. A temperature above 104°F or below 99°F is urgent. A heart rate that stays elevated well above 120 at rest, or one that feels weak and thready, needs attention. Labored breathing, where your dog seems to be working hard to pull air in, is always a concern regardless of the exact count.
Other physical signs you can pair with a TPR check: gum color should be pink and moist. Pale, white, blue, or bright red gums indicate a problem. Press a fingertip against the gum briefly. The color should return within two seconds after you release. Slower return suggests poor circulation.
Combining abnormal vitals with other symptoms paints a clearer picture. A dog with a high temperature, lethargy, and poor appetite is in a very different situation than one whose temperature reads slightly high after playing in the sun. Context matters, and having the actual numbers to share with your vet makes the phone call far more productive than “he just seems off.”