Arrhythmia Exam

Question 1

regularly irregular rhythm common in dogs

Answer 1

sinus arrhythmia

Question 2

faster than normal heart rate

Answer 2

sinus tachycardia

Question 3

slower than normal heart rate

Answer 3

sinus bradycardia

Question 4

normal heart rhythm

Answer 4

sinus rhythm

Question 5

wide and bizarre QRS complexes not associated with P waves- can occur randomly

Answer 5

ventricular premature complexes

Question 6

4 or more VPC’s in a row

Answer 6

ventricular tachycardia

Question 7

chaotic irregular waves due to lack of organized ventricular activity equires electrical defibrillation

Answer 7

ventricular fibrillation

Question 8

flat line

Answer 8

ventricular asystole

Question 9

when attaching an ECG to an animal, which lead is attached to the right foreleg?

Answer 9

white

Question 10

this diagnostic tool is commonly used in diagnosing Boxer cardiomyopathy. It is capable of recording an ECG over extended times

Answer 10

holter monitor

Question 11

sinus arrhythmia occurs when the

Answer 11

heart and pulse rates decrease with inspiration and increases with expiration

Question 12

when attaching the ECG to an animal the red lead should be attached to

Answer 12

left hindleg

Question 13

when obtaining a blood pressure measurement from a dog via a doppler, which of the following results are you getting?

Answer 13

systolic

Question 14

what test involves an ultrasound machine to evaluate the size and function of the heart?

Answer 14

echocardiogram

Question 15

which of the following is true

Answer 15

VPC’s can occur at any rate but pose the greatest danger when they occur in runs

Question 16

what structures disseminate electrical impulses across the ventricles

Answer 16

purkinje fibers

Question 17

lack of P waves- QRS complexes may appear normal or wide and bizarre, common cause

Answer 17

hyperkalemia atrial standstill

Question 18

complete AV block- P waves and QRS complexes are completely disassociated- requires a pacemaker for treatment

Answer 18

third degree heart block

Question 19

P-R intervals are normal but not every P wave results in a QRS complex

Answer 19

second degree heart block- Mobitz type 2

Question 20

progressive prologation of the P-R interval until the AV node is blocked

Answer 20

second degree heart block- Winckebach

Question 21

appears like a normal ECG but the P-R interval is longer than normal

Answer 21

first degree heart block

Question 22

The wave on an ECG that is associated with atrial wall depolarization is

Answer 22

P wave

Question 23

ON an ECG the T wave is most closely associated with

Answer 23

ventricular repolarization

Question 24

In a healthy heart the heartbeat is initiated by the ____ and is also known as the pacemaker of the heart

Answer 24

SA node

Question 25

“saw tooth” formations between the QRS complexes

Answer 25

atrial flutter

Question 26

irregular baseline between QRS complexes, no P wave evident, requires therapy

Answer 26

atrial fibrillation

Question 27

4 or more APCs in a row— sudden onset or temination

Answer 27

atrial tachycardia

Question 28

QRS complexes that are randomly too close together, caused by a P wave that occured too soon (may connect with previous T wave)

Answer 28

atrial premature contractions

Question 29

which of the following conditions is most life threatening

Answer 29

ventricular fibrillation

Question 30

measurement of the electrical activity of the heart is referred to as

Answer 30

electrocardiography