MCQ’s on ECG
1. ECG (Electrocardiogram) was developed first by
A. Wilhelm His
B. Steward
C. Hubert Mann
D. Willem Einthoven
Answer:: D.
2. This is the classic ECG change in MI (myocardial infarction)
A. ST-segment elevation
B. T-wave inversion
C. Development of an abnormal Q wave
D. All of these
Answer:: D.
3. In which of these conditions can widen QRS and Tall-tented T waves be observed?
A. Hyponatremia
B. Hyperkalemia
C. Hyperglycemia
D. Hyperphosphatemia
Answer:: B.
4. Hypokalemia is the condition of low potassium levels in your blood. Hypokalemia ECG changes are observed by
A. ST segment elevation
B. U wave (a position deflection after the T wave)
C. Tall peaked T waves
D. Widening of the QRS complex and increased amplitude
Answer:: B.
5. A normal ECG report must consist of the following information
A. Rhythm, cardiac axis
B. Conduction intervals
C. Description of the ST segments, QRS complexes, T-waves
D. All of these
Answer:: D.
6. For the normal heartbeat, depolarization stimulus originates in
A. His-bundle areas
B. Epicardium
C. Sinoatrial (SA)node
D. Atrioventricular (AV) node
Answer:: C.
7. The characteristics – slurring of the initial QRS deflection, shortened PR interval, and prolonged QRS duration are of this condition
A. Atrial tachycardia
B. Left bundle branch block
C. WPW (Wolff-Parkinson-White) syndrome
D. Myocardial ischemia
Answer:: C.
8. P wave indicates
A. Depolarization of right ventricle
B. Depolarization of left ventricle
C. Depolarization of both atria
D. Atria to ventricular conduction time
Answer:: C.
9. Ventricular muscle depolarization is indicated by
A. PR interval
B. P wave
C. U wave
D. The QRS complex
Answer:: D.
10. ECG identified by the PR interval tends to become longer with every succeeding ECG complex until there is a P wave not followed by a QRS is observed in
A. Third-Degree Atrioventricular Block
B. Second-Degree Atrioventricular Block, Type II
C. Second-Degree Atrioventricular Block, Type I
D. First-Degree Atrioventricular Block, Type II
Answer:: C.
