Online Electrocardiogram Flashcards
7 cards from real ECG practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Online Electrocardiogram flashcards as text
How many electrodes are placed on the body to record a standard 12-lead ECG?
Answer: 10
Ten electrodes (four limb and six chest) produce the 12 leads of a standard ECG.
Which chest lead is placed at the fourth intercostal space to the right of the sternum?
Answer: V1
V1 sits at the fourth intercostal space just right of the sternum.
What does the P wave on an ECG represent?
Answer: Atrial depolarization
The P wave reflects depolarization (contraction) of the atria.
The standard paper speed for recording an ECG is:
Answer: 25 mm/sec
ECG paper runs at a standard speed of 25 mm/sec.
Which limb electrode is typically used as the ground (reference) electrode?
Answer: Right leg
The right leg electrode serves as the ground reference.
A normal adult resting heart rate falls within which range?
Answer: 60-100 bpm
A normal adult resting heart rate is 60 to 100 beats per minute.
Wandering baseline artifact on an ECG tracing is most often caused by:
Answer: Patient movement or respiration
Baseline wander commonly results from patient movement, breathing, or loose electrodes.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- nhanow.com — Passing score, test delivery, eligibility, renewal, score release, time limit · verified Oct 2026
- cci-online.org — Test delivery, fees, exam format, passing score, renewal, score release · verified Oct 2026