1. What does the P wave represent? atrial contraction
2. Define: Repolarization when the heart
recovers
electronically
3. Define: Depolarization contraction of cardiac
cells
4. What does the QRS wave represent? ventricular contraction
5. What does the T wave represent? ventricular relaxation
6. Which wave only occurs occasionally in some patients? the U wave
7. What does the vertical line on the EKG represent? voltage
8. What does the horizontal line on the EKG represent? time
9. What is a baseline? the flat line that
separates the various
waves
10. What is one box equal to? .04 sec
11. What are 5 large squares equal to? .2 sec
12. What does BPM stand for? beats per minute
13. What is electrolyte? substance used to
conduct current
better
14. What forms does electrolyte come in? gels, lotions, pastes,
adhe- sive pads
1/
5
, EKG Certification Exam Questions Correctly Answered.
15. Why is electrolyte necessary? because the skin is a
poor conductor of
electricity
2/
5