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Q. No.Which of the following combination is correctly related to ECG?
A. It is a graphical representation of electric activity
B. Each peak is identified with a letter
C. Each peak is identified with numbers
D. Multiple leads are attached to the chest region
E. Single lead is attached to the chest region
Choose the correct answer from the options given below:
1. A & E only
2. B, C, D only
3. A, B, D only
4. A only
A. It is a graphical representation of electric activity
B. Each peak is identified with a letter
C. Each peak is identified with numbers
D. Multiple leads are attached to the chest region
E. Single lead is attached to the chest region
Choose the correct answer from the options given below:
1. A & E only
2. B, C, D only
3. A, B, D only
4. A only
Subtopic: Â ECG & Coronary Artery Disease |
 88%
From NCERT
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Match List I with List II:
Choose the correct answer from the options given below:
1. A - (III); B - (IV); C - (II); D - (I)
2. A - (IV); B - (III); C - (II); D - (I)
3. A - (IV); B - (III); C - (I); D - (II)
4. A - (I); B - (II); C - (III); D - (IV
| List I | List II |
| A. P-wave | I. Ventricular repolarization-relaxation phase |
| B. P-R interval | II. The onset of ventricular depolarization - leads to ventricular contraction |
| C. QRS complex | III. Time for the impulse to be conducted from SA node to the ventricles through the AV node |
| D. T-wave | IV. Atrial depolarization - leads to atrial contraction |
1. A - (III); B - (IV); C - (II); D - (I)
2. A - (IV); B - (III); C - (II); D - (I)
3. A - (IV); B - (III); C - (I); D - (II)
4. A - (I); B - (II); C - (III); D - (IV
Subtopic: Â ECG & Coronary Artery Disease |
 89%
From NCERT
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Read the given statements carefully:
How many of the given statements are correct?
1. Three
2. Four
3. Two
4. One
| A. | RBCs are devoid of nucleus in most of the mammals and are biconvex in shape. |
| B. | Lymph has the same mineral distribution as that in plasma. |
| C. | By counting the number of QRS complexes in ECG that occur in a given time period, one can determine the heartbeat rate of an individual. |
| D. | Heart is an endodermally derived organ. |
1. Three
2. Four
3. Two
4. One
Subtopic: Â Human Heart: Gross Anatomy |Â ECG & Coronary Artery Disease |Â Lymph |Â Blood: General Description & RBC |
 61%
From NCERT
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Read the given statements and choose the correct option
Statement X: There is reduction in the size of T-wave in coronary ischemia
Statement Y: A thick wall of fibrous tissue called inter-atrial septum separates the right and the left atria
1. Both statements X and Y are incorrect
2. Both statements X and Y are correct
3. Only statement X is correct
4. Only statement Y is correct
Statement X: There is reduction in the size of T-wave in coronary ischemia
Statement Y: A thick wall of fibrous tissue called inter-atrial septum separates the right and the left atria
1. Both statements X and Y are incorrect
2. Both statements X and Y are correct
3. Only statement X is correct
4. Only statement Y is correct
Subtopic: Â ECG & Coronary Artery Disease |
 58%
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Assertion (A): The heart rate of an individual can be determined by counting the number of QRS complexes.
Reason (R): The ECGs obtained from different healthy individuals have roughly the same shape for a given lead configuration.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason (R): The ECGs obtained from different healthy individuals have roughly the same shape for a given lead configuration.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Â ECG & Coronary Artery Disease |
 69%
From NCERT
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Assertion (A): ECG is of great clinical significance.
Reason (R): It helps to diagnose possible abnormalities/diseases of the heart.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason (R): It helps to diagnose possible abnormalities/diseases of the heart.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Â ECG & Coronary Artery Disease |
 94%
From NCERT
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Assertion (A): ECG is a graphical representation of the electrical activity of heart during cardiac cycle.
Reason (R): To obtain a standard ECG, patient is connected with two leads, one with left wrist and one with ankle.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): To obtain a standard ECG, patient is connected with two leads, one with left wrist and one with ankle.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â ECG & Coronary Artery Disease |
 81%
From NCERT
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Assertion (A): The 'T-wave' represents return to the ventricle from excited to normal state.
Reason (R): The end of 'T-wave' marks the end of diastole.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): The end of 'T-wave' marks the end of diastole.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â ECG & Coronary Artery Disease |
 60%
From NCERT
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Assertion (A): The enlargement of Q and R waves indicates heart attack.
Reason (R): If any deviation in normal ECG occurs, it indicates some abnormality.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Reason (R): If any deviation in normal ECG occurs, it indicates some abnormality.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Â ECG & Coronary Artery Disease |
 62%
From NCERT
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If there is a blockage between the AV node and AV bundle, how will this affect the appearance of the ECG?
1. PR interval would be smaller
2. QRS interval would be longer
3. There would be more P-waves than QRS complexes
4. There would be more QRS complexes than P-waves
1. PR interval would be smaller
2. QRS interval would be longer
3. There would be more P-waves than QRS complexes
4. There would be more QRS complexes than P-waves
Subtopic: Â ECG & Coronary Artery Disease |
 59%
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