what is the heart rate of a 2 -3 month puppy a shihtzu All questions Answered questions Unanswered questions Choose A Category Behavior Diet & Nutrition Eyes and Teeth Heart & Respiration Immune System Kidney & Urinary Limbs & Bones Miscellaneous Neurological Skin & Coat Tumors & Cancer Vaccinations Search « Back to Previous PageCategory: Heart & Respiration Tweet ▲ 0 ▼ ♥ 0 Marked as spam Asked on January 30, 2017 1:24 am 355 views Follow Unfollow ▲ 0 ▼ ✔ Private answer A puppy’s heart rate is quite variable depending on level of excitement or stress. Also smaller breeds tend to have a faster heart beat than larger breeds. I would expect a 2-3 month old Shih tzu to have a heart rate of 120 to 180. Marked as spam Posted by Dr. Gaylord Brown Answered on February 1, 2017 5:26 am « Back to Previous Page