FREE EKG Certification General Question and Answers Flashcards
6 cards from real EKG certification Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 FREE EKG Certification General Question and Answers flashcards as text
Which lead is best for continuous cardiac monitoring in most clinical settings?
Answer: Lead II
Lead II provides the best view of the heart's electrical activity along its normal axis, making it the standard for continuous monitoring.
What does an isoelectric ST segment indicate on an EKG?
Answer: Normal repolarization
An isoelectric ST segment, level with the baseline, indicates normal ventricular repolarization without ischemia or injury.
A patient's EKG shows a PR interval of 0.28 seconds. What does this suggest?
Answer: First-degree AV block
A PR interval greater than 0.20 seconds with consistent P-to-QRS conduction indicates first-degree AV block.
Which artifact on an EKG is most commonly caused by patient movement?
Answer: Somatic tremor
Somatic tremor artifact results from voluntary or involuntary muscle movement by the patient during recording.
What is the standard paper speed used when recording a 12-lead EKG?
Answer: 25 mm/sec
The standard paper speed for EKG recording is 25 mm/sec, where each small box represents 0.04 seconds.
Which electrolyte imbalance is most associated with the appearance of U waves on an EKG?
Answer: Hypokalemia
Hypokalemia is the most common cause of prominent U waves, which appear as small deflections after the T wave.