Olete.in – MCQs, Mock Tests & Government Job Prep | Zoology Zoology MCQS[NEET-2021 to 2022]-ECG

 ECG (Electrocardiogram) was developed first by

1. Wilhelm His
2. Steward
3. Hubert Mann
4. Willem Einthoven

✅ Correct Answer: 4

This is the classic ECG change in MI (myocardial infarction)

1. ST-segment elevation
2. T-wave inversion
3. Development of an abnormal Q wave
4. All of these

✅ Correct Answer: 4

In which of these conditions can widen QRS and Tall-tented T waves be observed?

1. Hyponatremia
2. Hyperkalemia
3. Hyperglycemia
4. Hyperphosphatemia

✅ Correct Answer: 2

A particular ECG change observed in Hypokalemia is

1. ST segment elevation
2. U wave (a position deflection after the T wave)
3. Tall peaked T waves
4. Widening of the QRS complex and increased amplitude

✅ Correct Answer: 2

ECG report must consist of the following information

1. Rhythm, cardiac axis
2. Conduction intervals
3. Description of the ST segments, QRS complexes, T-waves
4. All of these

✅ Correct Answer: 4

For the normal heartbeat, depolarization stimulus originates in

1. His-bundle areas
2. Epicardium
3. Sinoatrial (SA)node
4. Atrioventricular (AV) node

✅ Correct Answer: 3

The characteristics – slurring of the initial QRS deflection, shortened PR interval, and prolonged QRS duration are of this condition

1. Atrial tachycardia
2. Left bundle branch block
3. WPW (Wolff-Parkinson-White) syndrome
4. Myocardial ischemia

✅ Correct Answer: 3

P wave indicates

1. Depolarization of right ventricle
2. Depolarization of left ventricle
3. Depolarization of both atria
4. Atria to ventricular conduction time

✅ Correct Answer: 3

Ventricular muscle depolarization is indicated by

1. PR interval
2. P wave
3. U wave
4. The QRS complex

✅ Correct Answer: 4

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

1. Third-Degree Atrioventricular Block
2. Second-Degree Atrioventricular Block, Type II
3. Second-Degree Atrioventricular Block, Type I
4. First-Degree Atrioventricular Block, Type II

✅ Correct Answer: 3

ECG is used for examination of?

1. heart
2. kidney
3. LUNGS
4. BRAIN

✅ Correct Answer: 1

In ECG relaxation of ventricles is represented by?

1. P-wave
2. T wave
3. U wave
4. QRS complex

✅ Correct Answer: 2

What does lengthening of P wave indicate

1. Myocardial infraction
2. Enlargement of atria
3. Ventricular enlargement
4. Hyperkalamia

✅ Correct Answer: 2

What happens if T wave becomes wider?

1. CONDUCTION Abnormalities
2. insufficient oxygen to heart
3. hyperkalamia
4. myocardial ischemia

✅ Correct Answer: 2

What does elevated ST segment represents?

1. insufficient oxygen
2. acute myocardial infraction
3. Rheumatic fever
4. ischemia

✅ Correct Answer: 2

What does enlarged R wave indicate?

1. enlarged atria
2. Rheumatic fever
3. Coronary artery disease
4. none of the above

✅ Correct Answer: 4

Which of the following statement is NOT true?

1. P wave indicate atrial contraction
2. depressed ST segment indicate hyperkalamia
3. T wave represents ventricular repolarization
4. QRS complex represents ventricular depolarization

✅ Correct Answer: 2

ECG was first developed by?

1. Steward
2. Willem Einthoven
3. Koch
4. Hubbert Mann

✅ Correct Answer: 2

Which of the following is the part of ECG?

1. QRS complex
2. ST segment
3. T wave
4. All of the above

✅ Correct Answer: 4

This is the classic ECG change in MI (myocardial infarction)

1. ST-segment elevation
2. T-wave inversion
3. Development of an abnormal Q wave
4. All of these

✅ Correct Answer: 4

In which of these conditions can widen QRS and Tall-tented T waves be observed?

1. Hyponatremia
2. Hyperkalemia
3. Hyperglycemia
4. Hyperphosphatemia

✅ Correct Answer: 2

A particular ECG change observed in Hypokalemia is

1. ST segment elevation
2. U wave (a position deflection after the T wave)
3. Tall peaked T waves
4. Widening of the QRS complex and increased amplitude

✅ Correct Answer: 2

ECG report must consist of the following information

1. Rhythm, cardiac axis
2. Conduction intervals
3. Description of the ST segments, QRS complexes, T-waves
4. All of these

✅ Correct Answer: 4

For the normal heartbeat, depolarization stimulus originates in

1. His-bundle areas
2. Epicardium
3. Sinoatrial (SA)node
4. Atrioventricular (AV) node

✅ Correct Answer: 3

The characteristics – slurring of the initial QRS deflection, shortened PR interval, and prolonged QRS duration are of this condition

1. Atrial tachycardia
2. Left bundle branch block
3. WPW (Wolff-Parkinson-White) syndrome
4. Myocardial ischemia

✅ Correct Answer: 3

P wave indicates

1. Depolarization of right ventricle
2. Depolarization of left ventricle
3. Depolarization of both atria
4. Atria to ventricular conduction time

✅ Correct Answer: 3

Ventricular muscle depolarization is indicated by

1. PR interval
2. P wave
3. U wave
4. The QRS complex

✅ Correct Answer: 4

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

1. Third-Degree Atrioventricular Block
2. Second-Degree Atrioventricular Block, Type II
3. Second-Degree Atrioventricular Block, Type I
4. First-Degree Atrioventricular Block, Type II

✅ Correct Answer: 3