The Pulse

Q.

What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?

1. 125 beats per minute

2. 50 beats per minute

3. 75 beats per minute

4. 100 beats per minute

Q.

Explain heart sounds.

Q. First heart sound is produced due to

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

Q.

The second heart sound (dubb) is associated with the closure of ?
(a) tricuspid valve
(b) semilunar valve
(c) bicuspid valve
(d) tricuspid and bicuspid valve

Q. The heart sound “dub” is produced during which of the following stages of the cardiac cycle?

1. End of ventricular diastole
2. End of atrial systole
3. Joint diastole
4. End of ventricular systole

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. Choose the incorrect statement.

1. The end of P-wave marks the end of the systole
2. The ventricular contraction starts shortly after Q and marks the beginning of the systole
3. The number of QRS complexes per unit time period determine the heart rate of an individual
4. The end of T-waves mark the end of systole

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. $\frac{120}{80}=1.5\text{mm Hg}$

Q. In humans, the volume of blood pumped out by each ventricle per minute is

1. 3600 mL
2. 5040 mL
3. 2520 mL
4. 9360 mL

Q.

The device used to hear the heartbeat is

1. microscope

2. telescope

3. sphygmomanometer

4. stethoscope

Q. When you are ill the doctor may put his fingers on your wrist. Which of the following do you think the doctor observes by doing this?

1. The doctor listens to the heart beat by doing this
2. The doctor checks the pumping activity of the left ventricle and measures the heart rate
3. The doctor checks whether the blood is flowing from the hands to the heart
4. The doctor checks whether the blood is flowing properly to the hands

Q.

How doctors are able a detect whether a woman is pregnant or not by merely just examing her wrist?

Is the doctor checking her pulse.

Explain this .

Q. Which of the following instruments is used by a doctor to hear the sounds of the heartbeat?

1. Spirometer
2. Thermometer
3. Sphygmomanometer
4. Stethoscope

Q.

After a brisk walking our heart beat becomes faster, why?

Q. In all the leads of ECG, all following are positive waves except –

1. R
2. Q
3. T
4. P

Q. Typical lub-dub sounds in heart beat are due to

1. Closing of bicuspid and tricuspid valve
2. Closing of semi-lunar valve
3. Blood under pressure through aorta
4. Closure of bicuspid -tricuspid valve followed by semi-lunar valves

Q. When are the sounds LUBB and DUPP produced respectively during heart beat ?

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 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.

What is pulse and pulse rate?

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. 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.

The device used to hear heartbeats is called a

1. sphygmomanometer

2. manometer

3. thermometer

4. stethoscope

Q. Differentiate between.
Neurogenic heart and myogenic heart

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. In an ECG, the depolarization of atria is indicated by

1. P-wave
2. Q-wave
3. R-wave
4. S-wave
5. T-wave

Q. The heart sound “dub” is produced during which of the following stages of the cardiac cycle?

1. End of atrial systole
2. End of ventricular diastole
3. Joint diastole
4. End of ventricular systole

Q. Which of the following correctly explains a phase/ event in the cardiac cycle in a standard electrocardiogram?

1. Time between S and T represents the atrial systole.
2. QRS complex indicates ventricular contraction.
3. QRS complex indicates atrial contraction.
   
4. P-wave indicates the beginning of ventricular contraction.

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. Assertion :The normal heart rate is 72/min and cardiac cycle is of 0.8 sec. Reason: This means cardiac cycle is inversely proportional to the heart rate.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Both Assertion and Reason are incorrect.