Normal Canine ECG

Question 1

Heart rate for adult dogs

Answer 1

70-160

Question 2

Heart rate for giant breeds

Answer 2

60-140

Question 3

Heart rate for toy breeds

Answer 3

Up to 180 bpm

Question 4

Heart rate for puppies

Answer 4

Up to 220 bpm

Question 5

P wave: Width and Height

Answer 5

Width: max: 0.04 sec
and 0.05 sec in giant breeds
Height: max: 0.4 mV

Question 6

P-R Interval: Width

Answer 6

Width: 0.06 to 0.13 sec

Question 7

QRS Complex: Width and Height of R wave

Answer 7

Width: max of 0.05 sec in small breeds and 0.06 sec in large breeds
Height of R wave: max: 3.0 mV in large breeds, 2.5 mV in small breeds

Question 8

T wave qualities

Answer 8

can be positive, negative, biphasic, as long as it’s the same throughout the ECG

Question 9

Electrical Axis

Answer 9

+40-+100 degrees