EKG Certification Exam Questions with Verified Answers

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EKG Certification Exam Questions with Verified Answers

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Course EKG Certification

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What does the P wave represent? - ANSWERSatrial contraction Define: Repolarization - ANSWERSwhen the heart recovers electronically Define: Depolarization - ANSWERScontraction of cardiac cells What does the QRS wave represent? - ANSWERSventricular contraction What does the T wave represent? - ANSWERSventricular relaxation Which wave only occurs occasionally in some patients? - ANSWERSthe U wave What does the vertical line on the EKG represent? - ANSWERSvoltage What does the horizontal line on the EKG represent? - ANSWERStime What is a baseline? - ANSWERSthe flat line that separates the various waves What is one box equal to? - ANSWERS.04 sec What are 5 large squares equal to? - ANSWERS.2 sec What does BPM stand for? - ANSWERSbeats per minute What is electrolyte? - ANSWERSsubstance used to conduct current better What forms does electrolyte come in? - ANSWERSgels, lotions, pastes, adhesive pads Why is electrolyte necessary? - ANSWERSbecause the skin is a poor conductor of electricity What are electrodes? - ANSWERSsensors that detect electrical impulses on the body surface What are electrodes made of? - ANSWERSmetal or other conductive material What are lead wires? - ANSWERSthe wires that connect the sensors to the machine

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EKG Certification Exam Questions
with Verified Answers
What does the P wave represent? - ANSWERSatrial contraction

Define: Repolarization - ANSWERSwhen the heart recovers electronically

Define: Depolarization - ANSWERScontraction of cardiac cells

What does the QRS wave represent? - ANSWERSventricular contraction

What does the T wave represent? - ANSWERSventricular relaxation

Which wave only occurs occasionally in some patients? - ANSWERSthe U wave

What does the vertical line on the EKG represent? - ANSWERSvoltage

What does the horizontal line on the EKG represent? - ANSWERStime

What is a baseline? - ANSWERSthe flat line that separates the various waves

What is one box equal to? - ANSWERS.04 sec

What are 5 large squares equal to? - ANSWERS.2 sec

What does BPM stand for? - ANSWERSbeats per minute

What is electrolyte? - ANSWERSsubstance used to conduct current better

What forms does electrolyte come in? - ANSWERSgels, lotions, pastes, adhesive pads

Why is electrolyte necessary? - ANSWERSbecause the skin is a poor conductor of
electricity

What are electrodes? - ANSWERSsensors that detect electrical impulses on the body
surface

What are electrodes made of? - ANSWERSmetal or other conductive material

What are lead wires? - ANSWERSthe wires that connect the sensors to the machine

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Uploaded on: January 22, 2026
Number of pages: 2
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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