Here are some basic tests you can do to assess how your Mastiff is doing. They cover the main areas of blood flow, breathing, pulse, temperature and hydration.

blood flow

The flow of blood through the body is known as capillary refill time. To test your Mastiff’s capillary refill time, roll your lip back and press a finger to an unpigmented area of ​​the gums. The area should change from pink to almost white, and when you remove your finger, the pink color should return within a second or two.


Watch or feel the mastiff’s chest rise and fall. Count the number of breaths for 15 seconds, then multiply by four to calculate breaths per minute. Normal respiratory rate should be 10 to 30 breaths per minute.

pulse rate

Place one hand on your mastiff’s chest to feel his heartbeat, or place your first two fingers on his inner thigh. Notice if the heartbeat feels strong or weak.

Count your heart beats for 15 seconds and then multiply by four to calculate your heart beats per minute. Normal pulse should be 60 to 120 beats per minute.


To take your Mastiff’s temperature, insert a rectal thermometer (one with a rounded bulb end) into his rectum for 1 minute. Normal temperature should be 101 to 102 degrees F.


To check if your Mastiff is dehydrated, lift the skin on the back of the neck and release it. If he immediately returns to his spot, the dog is not dehydrated. If it takes time to return to its place, the animal could be dehydrated.

For mastiff puppies, you can assess their dehydration by looking at their urine. The urine should be as clear as water or light yellow in color. Dark yellow urine is a sign of dehydration.

By performing these simple tests regularly and recording the results, you will not only be able to spot the early signs that all is not well with your beloved Mastiff, but you will also have all the information.

that your vet will need in case of any emergency or serious health problem.