NWCA CET ACTUAL PRACTICE EXAM –FULLY SOLVED QUESTIONS WITH AND ANSWERS| GRADED A+

NWCA CET ACTUAL PRACTICE EXAM –FULLY
SOLVED QUESTIONS WITH AND ANSWERS|
GRADED A+


1. The _______ and _______ valves open to allow the ventricles to fill.
A. Pulmonary and Aortic
B. Tricuspid and Mitral
C. Mitral and Pulmonary
D. Tricuspid and Aortic
Answer: B

2. The layer of the heart that is damaged during a heart attack is the _______.
A. Endocardium
B. Myocardium
C. Pericardium
D. Epicardium
Answer: B

3. The inferior vena cava returns oxygen-poor blood to the heart from the _______
part of the body.
A. Head and neck
B. Upper
C. Lower
D. Lungs
Answer: C

4. The pulmonary veins deliver blood to the _______ atrium.
A. Right
B. Left
C. Right ventricle
D. Left ventricle
Answer: B

5. The ventricles’ inherent rate is between _______ bpm.
A. 60–100
B. 20–40
C. 40–60

,D. 100–120
Answer: B

6. The cardiac cycle’s two main phases are _______ and _______.
A. Systole and Diastole
B. Contraction and Relaxation
C. Depolarization and Repolarization
D. P wave and QRS
Answer: A

7. Depolarization occurs when the cell becomes _______ and _______.
A. More negative; relaxes
B. Less negative; contracts
C. Neutral; relaxes
D. Negative; contracts
Answer: B

8. A patient in normal sinus rhythm has a heart rate between _______ bpm and
_______ intervals between P waves.
A. 50–90; irregular
B. 60–100; equal
C. 40–60; irregular
D. 100–120; equal
Answer: B

9. Each large box on an ECG, which equals five small boxes, represents _______
seconds.
A. 0.04
B. 0.20
C. 1.0
D. 0.10
Answer: B

10. The P wave on an ECG represents _______.
A. Depolarization of the atria
B. Depolarization of ventricles
C. Repolarization of atria
D. Repolarization of ventricles
Answer: A

, 11. The QRS complex represents _______.
A. Depolarization of atria
B. Depolarization of ventricles
C. Repolarization of atria
D. Repolarization of ventricles
Answer: B

12. The QT interval is measured from the beginning of the _______ to the end of
the _______.
A. P wave; QRS
B. QRS; T wave
C. QRS; P wave
D. T wave; QRS
Answer: B

13. Lead I shows the difference in electrical voltage between the _______ and
_______ electrodes, with the positive pole on the _______.
A. Left arm; right arm; right arm
B. Right arm; left leg; left arm
C. Right arm; left leg; right arm
D. Left arm; right leg; left arm
Answer: B

14. Joining Lead I, II, and III at their ends produces _______.
A. Cardiac loop
B. ECG grid
C. Einthoven’s triangle
D. Cardiac axis
Answer: C

15. The V1 electrode is located at the _______ intercostal space, while the aVL
lead has a positive pull at the _______.
A. 3rd; right arm
B. 4th; left arm
C. 2nd; left arm
D. 5th; right arm
Answer: B

16. The heart’s natural pacemaker is the _______.
A. AV node