FREE EKG Technician Certification 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 Technician Certification Question and Answers flashcards as text
Which lead placement corresponds to the V4 precordial lead position?
Answer: Fifth intercostal space, midclavicular line
V4 is correctly placed at the fifth intercostal space at the left midclavicular line, directly over the cardiac apex.
What does a prolonged QT interval on an EKG most commonly indicate?
Answer: Increased risk of ventricular arrhythmias
A prolonged QT interval increases the risk of torsades de pointes and other dangerous ventricular arrhythmias.
An EKG technician notices significant baseline wander on the tracing. What is the most likely cause?
Answer: Patient movement or respiratory artifact
Baseline wander is most commonly caused by patient movement, respirations, or loose electrodes shifting with body motion.
In a 12-lead EKG, which leads are considered the inferior leads?
Answer: II, III, aVF
Leads II, III, and aVF view the inferior wall of the heart supplied primarily by the right coronary artery.
What is the normal duration of the PR interval in an adult patient?
Answer: 0.12 to 0.20 seconds
The normal PR interval ranges from 0.12 to 0.20 seconds, representing conduction from the atria through the AV node to the ventricles.
Which EKG finding is most characteristic of atrial fibrillation?
Answer: Irregularly irregular rhythm with absent P waves
Atrial fibrillation presents with an irregularly irregular ventricular rhythm and no identifiable P waves due to chaotic atrial electrical activity.