Question 1

A cardiac arrhythmia that is life threatening and provides no effective cardiac output is

Accepted Answer

A) atrial fibrillation. 
B) V-tach. 
C) V-fib. 
D) PVC. 
A) atrial fibrillation. 
B) V-tach. 
C) V-fib. 
D) PVC. C

Question 2

For a cardiac cell to return to its resting membrane potential,

Accepted Answer

A) repolarization of the cell membrane must occur. 
B) a nerve impulse must be initiated by the Purkinje fibers. 
C) depolarization of the cardiac cell membrane must occur. 
D) none of the above are correct. 
A) repolarization of the cell membrane must occur. 
B) a nerve impulse must be initiated by the Purkinje fibers. 
C) depolarization of the cardiac cell membrane must occur. 
D) none of the above are correct. A

Question 3

The cardiac arrhythmia of bradycardia generally involves abnormalities to

Accepted Answer

A) the SA node. 
B) Purkinje fibers of the left atrium. 
C) the atrioventricular node. 
D) both a and c. 
A) the SA node. 
B) Purkinje fibers of the left atrium. 
C) the atrioventricular node. 
D) both a and c. D

Question 4

Heart rates above 100 beats/min in an adult is termed

Accepted Answer

A) bradycardia. 
B) tachycardia. 
C) cardiac ectopia. 
D) fibrillation. 
A) bradycardia. 
B) tachycardia. 
C) cardiac ectopia. 
D) fibrillation.

Question 5

Adequate perfusion of human tissue generally requires

Accepted Answer

A) a diastolic pressure of 20 mm Hg. 
B) a systolic pressure of 90 mm Hg or greater. 
C) occasional arrhythmias to bring the heart into a rhythmic cardiac cycle. 
D) a diastolic pressure of at least 90 mm Hg. 
A) a diastolic pressure of 20 mm Hg. 
B) a systolic pressure of 90 mm Hg or greater. 
C) occasional arrhythmias to bring the heart into a rhythmic cardiac cycle. 
D) a diastolic pressure of at least 90 mm Hg.

Question 6

All of the following are related EXCEPT

Accepted Answer

A) AV node. 
B) Purkinje fibers. 
C) SA node. 
D) mitral valve. 
A) AV node. 
B) Purkinje fibers. 
C) SA node. 
D) mitral valve.

Question 7

If the PR interval is longer than normal on a typical ECG tracing,one can assume that

Accepted Answer

A) the patient has tachycardia. 
B) the patient has normal sinus rhythm. 
C) an atrioventricular (AV)node block is present. 
D) the patient has bradycardia. 
A) the patient has tachycardia. 
B) the patient has normal sinus rhythm. 
C) an atrioventricular (AV)node block is present. 
D) the patient has bradycardia.

Question 8

A widened QRS complex on an ECG tracing could represent

Accepted Answer

A) ventricular hypertrophy. 
B) ventricular-paced rhythm. 
C) pacemaker tissue that is below the AV node. 
D) all of the above. 
A) ventricular hypertrophy. 
B) ventricular-paced rhythm. 
C) pacemaker tissue that is below the AV node. 
D) all of the above.

Question 9

A dual-wire ICD places electrode tips in the

Accepted Answer

A) right atrium and right ventricle. 
B) right and left ventricles. 
C) right and left atria. 
D) left atrium and left ventricle. 
A) right atrium and right ventricle. 
B) right and left ventricles. 
C) right and left atria. 
D) left atrium and left ventricle.

Question 10

The QRS complex on a typical ECG represents

Accepted Answer

A) depolarization of atrial muscle. 
B) depolarization of ventricular muscle. 
C) repolarization of ventricular muscle. 
D) ventricular diastole. 
A) depolarization of atrial muscle. 
B) depolarization of ventricular muscle. 
C) repolarization of ventricular muscle. 
D) ventricular diastole.

Question 11

Referring to the choices below,the normal flow of electrical impulse through the cardiac conduction system of the heart follows what sequence of events?
1)Purkinje fibers
2)AV node
3)SA node
4)Bundle of His
5)Interventricular node (IV node)

Accepted Answer

A) 3,1,4,5 
B) 2,3,5,1 
C) 3,2,4,1 
D) 3,5,4,1 
A) 3,1,4,5 
B) 2,3,5,1 
C) 3,2,4,1 
D) 3,5,4,1

Question 12

An effective method for treating select cardiac arrhythmias is the use of high-frequency alternating current to destroy strategic cardiac tissue and reroute the cardiac impulses generated.These procedures are known as

Accepted Answer

A) selective coronary angioplastic repairs. 
B) cardiac ablation treatments. 
C) left ventriculograms. 
D) cardiac valvular replacements. 
A) selective coronary angioplastic repairs. 
B) cardiac ablation treatments. 
C) left ventriculograms. 
D) cardiac valvular replacements.

Question 13

A possible complication of patients with a history of atrial fibrillation is

Accepted Answer

A) right coronary artery stenosis. 
B) left coronary artery stenosis. 
C) atrial emboli formation. 
D) AV node bundle block. 
A) right coronary artery stenosis. 
B) left coronary artery stenosis. 
C) atrial emboli formation. 
D) AV node bundle block.

Question 14

The polarity that exists across a cardiac cell membrane is maintained by an active transport process known as

Accepted Answer

A) the cardiac cycle. 
B) fibrillation. 
C) sodium-potassium ion pump. 
D) pinocytosis. 
A) the cardiac cycle. 
B) fibrillation. 
C) sodium-potassium ion pump. 
D) pinocytosis.

Question 15

Cardioversion therapy can be used to treat

Accepted Answer

A) ventricular fibrillation. 
B) atrial-related arrhythmias. 
C) V-tach. 
D) all of the above. 
A) ventricular fibrillation. 
B) atrial-related arrhythmias. 
C) V-tach. 
D) all of the above.

Exam 16: Basic Cardiac Monitoring: The Electrocardiogram

A cardiac arrhythmia that is life threatening and provides no effective cardiac output is

For a cardiac cell to return to its resting membrane potential,

The cardiac arrhythmia of bradycardia generally involves abnormalities to

Heart rates above 100 beats/min in an adult is termed

Adequate perfusion of human tissue generally requires

All of the following are related EXCEPT

If the PR interval is longer than normal on a typical ECG tracing,one can assume that

A widened QRS complex on an ECG tracing could represent

A dual-wire ICD places electrode tips in the

The QRS complex on a typical ECG represents

Referring to the choices below,the normal flow of electrical impulse through the cardiac conduction system of the heart follows what sequence of events? 1)Purkinje fibers 2)AV node 3)SA node 4)Bundle of His 5)Interventricular node (IV node)

An effective method for treating select cardiac arrhythmias is the use of high-frequency alternating current to destroy strategic cardiac tissue and reroute the cardiac impulses generated.These procedures are known as

A possible complication of patients with a history of atrial fibrillation is

The polarity that exists across a cardiac cell membrane is maintained by an active transport process known as

Cardioversion therapy can be used to treat

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