ECG

Question 1

Atrial Depolarization on an ECG is represented by the __

Answer 1

P Wave

Question 2

Ventricular Depolarization on an ECG is represented by the __

Answer 2

QRS Complex

Question 3

Ventricular Repolarization on an ECG is represented by the __

Answer 3

T Wave

Question 4

This is an NSR, also known as a ___

Answer 4

Normal Sinus Rhythm. Normal ECG

Question 5

This ECG reflects a change in HR associated with respiration. An increase is seen during inspiration. This is normal in dogs and abnormal in cats.

Answer 5

Sinus Arrhythmia

Question 6

This is a below average heart rate, usually less than 60 in dogs and 120 in cats.

Answer 6

Sinus Bradycardia

Question 7

This is an above average heart rate, usually over 180 in dogs and 240 in cats.

Answer 7

Sinus Tachycardia

Question 8

This ECG shows no discernable P wave, but does have a normal QRS complex. This is an example of __ __

Answer 8

Atrial Fibrillation
**Fibrillationis the rapid,irregular,and unsynchronized contraction of muscle fibers

Question 9

Atrial fibrillation can occur secondary to heart failure. It can be treated with __.

Answer 9

Calcium channel blockers, Diltiazem, or Electric Cardioversion

Question 10

This ECG has no discernable P or QRS wave, indicating rapid disorganized depolarization of all ventricular cells. There is no effective cardiac output. This can be fatal.

Answer 10

Ventricular fibrillation - Death unless electrical defibrillation

Question 11

This ECG has no discernable P wave and a wide bizarre QRS complex. There is irregular rhythm with normal HR, and a large T wave in opposite direction of QRS complex.
There is a Compensatory pause following VPC
This arrythmia is caused by Irregular rhythm with normal HR
Large T wave in opposite direction of QRS complex
Compensatory pause following VPC

Answer 11

Ventricular Premature Contraction

Question 12

This arrythmia is commonly seen in GDV, splenic cases, cardiac disease, trauma, sepsis, toxin exposure, electrolyte abnormality and hyperthyroidism. Treatment is not always needed.

Answer 12

VPC - Ventricular Premature Contraction

Question 13

This ECG shows Tachycardia with wide and bizarre QRS complexes. It is ___. This arrhythmia can cause life-threatening hemodynamic impairment, and should be treated with __

Answer 13

Ventricular Tachycardia
**Lidocaine bolus and then CRI

Question 14

This ECG shows impulses arising from atrial myocardium, not the SA node. Treatment is generally not needed; commonly associated with atrial enlargement secondary to heart disease

Answer 14

Atrial Premature Contraction