BEHS / BCHS EKG EXAM REVIEW UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

BEHS / BCHS EKG EXAM REVIEW UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. What are the three main components of an EKG?
Answer:
Wave, Segment, Complex

Question:
2. What does the P wave represent in an EKG?
Answer:
Atrial depolarization and contraction




Question:
3. What is the purpose of an EKG?
Answer:
To record the electrical activity of the heart at rest and provide information about heart rate, rhythm, and
heart conditions.

Question:
4. What does the PR segment indicate?
Answer:
The period of time in which the electrical impulse is delayed at the AV node before traveling to the
ventricles.

Question:
5. What does the QRS complex represent?
Answer:
Ventricular depolarization and contraction.

, Question:
6. What does the T wave indicate on an EKG?
Answer:
Ventricular repolarization and subsequent ventricular relaxation.




Question:
7. What is an interval in the context of EKG?
Answer:
A duration of time that includes one segment and one or more waves.

Question:
8. What are the main EKG intervals?
Answer:
PR interval and QT interval.

Question:
9. What does the ST segment represent?
Answer:
The period when the ventricles are depolarized and there are no new voltage changes.

Question:
10. What happens during early diastole?
Answer:
Blood enters the right atrium via the vena cava and the left atrium via the pulmonary veins.

Question:
11. What is the role of the SA node?
Answer:
It acts as the pacemaker, generating cardiac action potentials that initiate atrial contraction.