Free CSC Questions and Answers

Question 1

Which EKG leads show the heart's electrical activity in a horizontal plane?

Accepted Answer

Unipolar precordial leads

Answer

Leads I through III

Answer

Bipolar leads

Answer

Augmented unipolar leads

Question 2

When the SA node fails to depolarize the atria, what is the condition known as?

Accepted Answer

Sinus pause

Answer

Atrial flutter

Answer

Hypersensitization

Answer

Cardiac failure

Question 3

A Wenckebach AV block: what is it?

Accepted Answer

Increasingly difficult AV node conduction showing a P wave not followed by a QRS complex on EKG

Answer

A delayed AV conduction at the bundle braches

Answer

No conduction of impulse from the atria to the ventricles

Answer

A delay in the conduction of the impulse through the AV junction

Question 4

Which type of atrioventricular block doesn't affect how the heart works?

Accepted Answer

First-degree block

Answer

Mobitz I block

Answer

Right bundle branch block

Answer

Hemiblock

Question 5

What are a few third-degree AV block causes?

Accepted Answer

Age, digitalis intoxication, or myocardial infarction

Answer

Hypertension, coronary artery disease, and cardiomyopathy

Answer

Certain drugs, such as quinidine and atropine

Answer

Heart disease and damage from uncontrolled diabetes mellitus

Question 6

Which kind of atrioventricular block patient in particular would be a good candidate for a pacemaker implant?

Accepted Answer

Third-degree block

Answer

Transmural ischemic blocks

Answer

Posterior fascicular block

Answer

Hemiblocks

Question 7

What condition might an EKG with tall, upright T waves or ST elevations be a very early sign of?

Accepted Answer

Transmural myocardial infarction

Answer

Coronary artery disease

Answer

Coronary artery disease

Answer

Sudden cardiac death