What is the typical resting heart rate for a medium/large dog (>30 lbs)?

What is the typical resting heart rate for a medium/large dog (>30 lbs)?

• A. 60-100
• B. 100-160
• C. 120-160
• D. 80-120

Answer: (A)

Size affects resting heart rate in dogs: larger dogs tend to have slower rates at rest because their cardiovascular system handles blood flow more efficiently. For a medium to large dog (over 30 pounds), a normal resting heart rate is about 60 to 100 beats per minute. This range reflects a calm, rested state with balanced autonomic tone. Rates higher than that, especially moving toward 120–160, are more typical of smaller dogs or a dog that’s stressed, excited, or unwell. The 80–120 range can occur, but the most typical resting rate for a large dog sits at the lower end of that spectrum, near 60–100.

Size affects resting heart rate in dogs: larger dogs tend to have slower rates at rest because their cardiovascular system handles blood flow more efficiently. For a medium to large dog (over 30 pounds), a normal resting heart rate is about 60 to 100 beats per minute. This range reflects a calm, rested state with balanced autonomic tone. Rates higher than that, especially moving toward 120–160, are more typical of smaller dogs or a dog that’s stressed, excited, or unwell. The 80–120 range can occur, but the most typical resting rate for a large dog sits at the lower end of that spectrum, near 60–100.