The Pulse

Q.

Is lower heart rate observed in infants suffering from down syndrome?

Q.

Who has heart on right side?

Q. Which one of the following is a correct matching pair?

1. Lub - sharp closure of AV valves at the beginning of ventricular systole
2. Dub - sudden opening of semilunar valves at the beginning of ventricular diastole
3. Pulsation of the radial artery - valves in the blood vessels
4. Initiation of the heart beat - Purkinje fibres

Q.

A normal ECG has the readings as ;

1. 1. → Repolarization, 2. → Q, 3. → R, 4. → Repolarization, 5. → Depolarization

2. 1. → Depolarization, 2. → R, 3. → Q, 4. → Repolarization, 5. → T

3. 1. → Depolarization, 2. → Q, 3. → R, 4. → Depolarization, 5. → T

4. 1. → Repolarization, 2. → Q, 3. → R, 4. → Depolarization, 5. → Depolarization

Q.

Athletes trained for endurance, such as swimmers and marathon runners, have a higher stroke volume at rest mainly because they have

1. Resting bradycardia

2. More sympathetic stimulation from the SA node

3. Increased heart rate

4. Decreased end-diastolic volume

Q. Lub sound is due to ______________

1. closing of semilunar valve
2. opening of semilunar valve
3. closing of atrioventricular valve
4. opening of atrioventricular valve

Q. Congenital Heart Disease is caused due to

1. chromosomal abnormalities
2. mother infected with rubella
3. administration of harmful drugs during the first three months of pregnancy
4. all of these

Q.

Which of the component of an ECG is correctly matched below ?

1. Peak P - initiation of left atrial contraction only.

2. Peak T - initiation of total cardiac contraction

3. Peak P and R together - systolic and diastolic blood pressures

4. QRS - one complete pulse

Q.

The “lub” sound (first heart sound) is caused by the

1. Filling of the ventricles

2. Ventricular contraction

3. Closing of the av valves

4. Closing of semilunar valves

Q.

A normal ECG has the readings as ;

1. 1. → Repolarization, 2. → Q, 3. → R, 4. → Repolarization, 5. → Depolarization

2. 1. → Depolarization, 2. → R, 3. → Q, 4. → Repolarization, 5. → T

3. 1. → Depolarization, 2. → Q, 3. → R, 4. → Depolarization, 5. → T

4. 1. → Repolarization, 2. → Q, 3. → R, 4. → Depolarization, 5. → Depolarization

Q.

What is pulse?

Q. Which of the following characterize the ‘dub’ sound?
I. High pitch
II. Low pitch
III. Louder
IV. Sharper
V. Less loud
VI. Less sharp
VII. Longer duration
VIII. Shorter duration

1. I, III, IV, VIII
2. II, V, VI, VII
3. I, V, IV, VII
4. II, III, VI, VIII

Q.

Name the following:

A disorder when the heart stops working suddenly.

Q. First heart sound is produced due to

1. closure of the tricuspid
2. closure of the bicuspid
3. closure of the semilunar valves
4. both a and b

Q.

The 3 variables which measure the efficiency of cardiac cycle and the heart’s pumping activity are _______.

1. Blood pressure, pulse, cardiac output.

2. Systole, diastole, stroke volume.

3. Isovolumetric contraction, isovolumetric relaxation, ejection.

4. Sinoatrial node, bundle of His, atrioventricular node.

Q. If the systolic pressure is 120 mm Hg and diastolic pressure is 80 mm Hg, the pulse pressure is

1. $120\times 80=9600\text{mm Hg}$
2. 120 + 80 = 200 mm Hg
3. 120 - 80 = 40 mm Hg
4. $\frac{120}{80}=1.5\text{mm Hg}$