FREE EKG Certification Trivia 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 Trivia Question and Answers flashcards as text
Which EKG pattern is most consistent with hyperkalemia?
Answer: Peaked T waves
Peaked, narrow T waves are the earliest and most characteristic EKG sign of hyperkalemia.
What rhythm is indicated by a saw-tooth pattern of P waves at approximately 300 bpm with a regular ventricular rate?
Answer: Atrial flutter
Atrial flutter produces characteristic saw-tooth flutter waves at about 300 bpm, typically with a 2:1 conduction ratio giving a ventricular rate near 150 bpm.
In a third-degree (complete) heart block, what is the relationship between P waves and QRS complexes?
Answer: P waves and QRS complexes occur independently with no consistent relationship
In complete heart block, the atria and ventricles fire independently because no atrial impulses conduct through the AV node to the ventricles.
ST elevation in leads II, III, and aVF most likely indicates ischemia in which coronary artery territory?
Answer: Right coronary artery
Leads II, III, and aVF reflect the inferior wall of the heart, which is most commonly supplied by the right coronary artery.
What is the primary purpose of placing EKG electrodes in the V1–V6 precordial positions?
Answer: To visualize electrical activity in the horizontal plane of the heart
The six precordial leads record electrical activity across the horizontal (transverse) plane, providing views of the anterior, lateral, and septal walls.
Which artifact on an EKG tracing is most commonly caused by patient shivering or muscle tremor?
Answer: Baseline wander with irregular high-frequency oscillations
Muscle tremor or shivering produces somatic tremor artifact appearing as irregular, high-frequency oscillations on the EKG baseline.