EKG certification Certification FREE EKG Certification General Question and Answers 2

Question 1

Which lead is best for continuous cardiac monitoring in most clinical settings?

Accepted Answer

Lead II

Answer

Lead I

Answer

Lead III

Answer

Lead aVR

Question 2

What does an isoelectric ST segment indicate on an EKG?

Accepted Answer

Normal repolarization

Answer

Myocardial infarction

Answer

Atrial flutter

Answer

Ventricular hypertrophy

Question 3

A patient's EKG shows a PR interval of 0.28 seconds. What does this suggest?

Accepted Answer

First-degree AV block

Answer

Normal conduction

Answer

Second-degree AV block Type I

Answer

Third-degree AV block

Question 4

Which artifact on an EKG is most commonly caused by patient movement?

Accepted Answer

Somatic tremor

Answer

60-cycle interference

Answer

Wandering baseline

Answer

Electrical alternans

Question 5

What is the standard paper speed used when recording a 12-lead EKG?

Accepted Answer

25 mm/sec

Answer

10 mm/sec

Answer

50 mm/sec

Answer

100 mm/sec

Question 6

Which electrolyte imbalance is most associated with the appearance of U waves on an EKG?

Accepted Answer

Hypokalemia

Answer

Hyperkalemia

Answer

Hypercalcemia

Answer

Hyponatremia