DIY Physical Exam Part 1 – How to Check Your Dog’s Vital Signs

As pet parents, we want to be able to fix all of our dog’s problems. Chilly? Sure, we’ll buy you that designer sweater. Need a snack? Be right back to whip up some sweet potato treats. But when it comes to sickness – as much as we’d do anything to help our pup feel better – we shy away from solving it ourselves, reserving that for the professionals.

However, you’re likely more capable in this department than you think. To identify an illness with your dog, you must first be able to recognise what is normal for your dog, and you know your dog better than anyone else. It’s up to you to decide when an abnormal situation warrants professional help. Sometimes the condition is so serious it leaves no doubt. Frequently, however, the changes are subtle, or happen over a longer period of time, making noticing a problem more difficult.

In this series, I’ll explain how to perform an at-home physical exam on your dog, helping to establish what is normal for your pet. It’s recommended that you occasionally perform this exam when there is nothing wrong so you can get used to what is normal. This practice will allow for the early detection of changes in your dog’s health.

Start with the basics for your pup’s physical exam: assessing your dog's posture, discovering their normal temperature and obtaining a heart rate. Next, we’ll continue with a systems approach, beginning with the head area, followed by the chest and, lastly, the abdomen. At the end of this series of articles, you should feel totally prepared to perform a screening exam on your dog.

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Get started with the basics

Before you start your hands-on physical exam, stand back and simply look at your dog for a few minutes. (Easy, right? You could stare at the pup all day.) The posture, breathing, activity level and general appearance can really tell you a great deal. Get a good picture of your dog’s ‘normal’ in its relaxed home environment – this mental snapshot will help you notice any subtle change.

How to check a dog’s temperature

Taking your dog’s temperature is an easy, important procedure – and something all pet parents should know how to do. Use a digital rectal thermometer (the ear type is less reliable and mercury thermometers can break). Lubricate the end of the thermometer with petroleum jelly and gently insert the thermometer into your dog’s rectum – about 2.5 centimetres for small dogs and about 5 centimetres for larger ones. If it does not slide in easily, do not force it. And do not risk taking your pet’s temperature if you feel there is a risk of being bitten.

Normal

• A normal dog temperature is between 37.8C and 39.2C.

• When checking for a dog’s temperature, the thermometer should be almost clean when removed.

Abnormal

• A temperature below 37.2C or above 39.2C is abnormal for a dog.

Evidence of blood, diarrhoea, or black, tarry stool on the thermometer is abnormal for a dog; black, tarry stool can indicate a bleeding ulcer in the stomach or small intestines, or point to other sources of disease.

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How to find a dog’s pulse and heart rate

The best time to learn how to locate the pulse on your dog is before a crisis. And the best place to get a pulse on a dog is the femoral artery in the groin area. Place your fingers around the front of the hind leg and move upward until the back of your hand meets the abdominal wall. Move your fingertips back and forth on the inside of the thigh until you feel the ‘roll’ of the dog’s artery and the pulsing sensation as the blood rushes through it. Count the number of pulses in 15 seconds and multiply by four. This will give you the pulse rate of your dog in beats per minute. Pulse rate is a highly variable finding and can be affected by recent exercise, excitement or stress. Do not use the heart rate at the sole evidence that your dog is sick or healthy.

The heart rates that are listed are for healthy dogs at rest in their home, not for animals that are evaluated in a veterinary clinic, where higher heart rates may be detected due to excitement, the stress of a vet visit or disease.

Normal

• For dogs, a heart rate of 60 to 160 beats per minute (bpm) is normal. Relaxed, large breed, or athletic dogs tend to have slower heart rates, while small breed dogs and puppies tend to have higher heart rates. This marked variability in heart rate stresses the importance of knowing what is normal for your individual dog.

• The pulse should be easily felt and the quality of it should be strong and regular.

Abnormal

• Too rapid or too slow for your individual dog.

• Pulse is weak, irregular or hard to locate.

Now you’ve assessed your dog’s general health, and learned how to take your dog’s temperature and check your dog’s heart rate. It is important to practice these essential skills​ as a pet parent.

Consult your veterinarian if you’re concerned about any of these dog physical exam findings – early recognition can save your dog’s life.