NCCT ECG PRACTICE TEST
Cardiology and ECG Questions
1. What would be considered a cardinal feature of sinus rhythm?
️ The P wave should always be upright in leads 1 and 2.
2. What is a small wave (similar to the P wave) that sometimes appears after the T wave, and is thought
to repres...
NCCT ECG PRACTICE TEST
Cardiology and ECG Questions
1. What would be considered a cardinal feature of sinus rhythm?
✔️ The P wave should always be upright in leads 1 and 2.
2. What is a small wave (similar to the P wave) that sometimes appears after the T wave, and is thought
to represent late repolarization of the Purkinje fibers in the ventricles?
✔️ U wave
3. A disturbance of SA nodal function that results in a markedly variable rhythm is known as:
✔️ Sick sinus rhythm.
4. What term best describes a cardiac condition that demonstrates a sinus rate of 250 to 350 beats per
minute?
✔️ Atrial fibrillation.
5. Which wave represents ventricle depolarization?
✔️ T wave.
6. Which of these ECG findings indicates a pulse greater than 100 beats per minute with at least three
irregular beats in a row?
✔️ Ventricular tachycardia.
7. The P wave is indicative of:
✔️ Atrial depolarization.
8. What best describes this rhythm strip?
✔️ Premature atrial contraction with PVCs.
, 9. What best describes this rhythm strip?
✔️ Trigeminy PVCs.
10. What best describes this rhythm strip?
✔️ Sinus bradycardia.
11. What best describes this rhythm strip?
✔️ Isolated PVC.
12. Diastole:
✔️ Occurs when the ventricle relaxes, and the blood flows into the atrium from the vena cava and
pulmonary veins.
13. What is the LEAST likely to cause under-sensing in the ECG?
✔️ Exposure to interference.
14. Drug therapy, hyperkalemia, Twiddler's syndrome, and battery depletion can all be occasional
causes of ECG ________.
✔️ Over-sensing.
15. The membranous sac filled with serous fluid that encloses the heart and the roots of the aorta and
other large blood vessels is known as the:
✔️ Pericardium.
16. The abbreviation AF is most commonly used for:
✔️ Atrial fibrillation.
17. Fibrillation:
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