PhysioLec: Factors Affecting HR and BP

Question 1

TRUE OR FALSE: When a patient is standing up from a sitting position,
muscle pumping is necessary to counteract the pooling
of blood in the LE to increase the stroke volume.

Answer 1

True

Question 2

TRUE OR FALSE: The first heart sound is due to the slapping of the valves.

Answer 2

False

Question 3

TRUE OR FALSE: When the patient would slowly change from supine to sitting position, if the body does not react to the changes, dizziness can occur because of blood pooling in the legs.

Answer 3

False

Question 4

TRUE OR FALSE: When a patient is lying in bed, the blood is evenly
distributed and majority on the larger blood vessels.

Answer 4

True

Question 5

TRUE OR FALSE: Acute control of the blood vessels is achieved by rapid changes in local vasodilation or vasoconstriction that
occur within seconds to minutes to provide maintenance of blood flow.

Answer 5

True

Question 6

TRUE OR FALSE: Baroreceptor reflex is initiated by stimulating the baroreceptors on large systemic veins. A rise in pressure
stretches these and transmits signals into the CNS.

Answer 6

False

Question 7

TRUE OR FALSE: A patient with low pulse pressure of 20 mmHg, has adequate perfusion to the systemic tissues of cardiac tissues.

Answer 7

False

Question 8

TRUE OR FALSE: Murmurs on a patient with aortic stenosis can be heard during the systolic phase of the cardiac cycle.

Answer 8

True

Question 9

TRUE OR FALSE: During isovolumetric contraction both semilunar valves
and AV valves are open.

Answer 9

False

Question 10

TRUE OR FALSE: A patient has rigid blood vessels due to smoking, the pulse pressure expected would be high.

Answer 10

True

Question 11

TRUE OR FALSE: Mitral regurgitation is due to an incompetent closure of the mitral valve during systole allowing backflow of blood causing unusual turbulence and sounds during ventricular contraction.

Answer 11

True

Question 12

Semilunar valves opens allowing blood flow from the left ventricle to aorta and there is a rapid increase ventricular pressure and ventricular volume decreases.
A. Rapid ventricular filling
B. Reduced ventricular filling
C. Rapid ventricular ejection
D. Reduced ventricular ejection

Answer 12

C. Rapid ventricular ejection

Question 13

Rapid increase in ventricular volume and where the semilunar valves are closed and AV valves are open.
A. Rapid ventricular filling
B. Reduced ventricular filling
C. Rapid ventricular ejection
D. Reduced ventricular ejection

Answer 13

A. Rapid ventricular filling

Question 14

This phase of the cardiac cycle is the longest phase and is
dependent on the heart rate of an individual.
A. Rapid ventricular filling
B. Reduced ventricular filling
C. Rapid ventricular ejection
D. Reduced ventricular ejection

Answer 14

B. Reduced ventricular filling

Question 15

Phase of the cardiac cycle wherein there is ventricular pressure but no change in ventricular volume.
A. Isovolumetric contraction
B. Isovolumetric relaxation
C. Atrial contraction
D. Atrial relaxation
E. Both A and B

Answer 15

A. Isovolumetric contraction

Question 16

The second heart sound “dub” happens at which phase of the cardiac cycle.
A. Isovolumetric contraction
B. Isovolumetric relaxation
C. Atrial contraction
D. Atrial relaxation
E. Both A and B

Answer 16

B. Isovolumetric relaxation

Question 17

The phase of the cardiac cycle wherein the semilunar valves and atrioventricular valves are closed.
A. Isovolumetric contraction
B. Isovolumetric relaxation
C. Atrial contraction
D. Atrial relaxation
E. Both A and B

Answer 17

E. Both A and B

Question 18

This accounts for 30% of ventricular filling since 70% passively falls when the AV valves are open.
A. Isovolumetric contraction
B. Isovolumetric relaxation
C. Atrial contraction
D. Atrial relaxation
E. Both A and B

Answer 18

C. Atrial contraction

Question 19

TRUE OR FALSE: As the left ventricle ejects blood into the aorta out into the system, the pressure in the ventricles should exceed the aortic pressure.

Answer 19

True

Question 20

A murmur on a patient with mitral regurgitation was
described as having medium intensity with a palpable thrill. What
is the levine scale of this murmur?

Answer 20

IV

Question 21

TRUE OR FALSE: Systolic blood pressure remains unchanged from supine to sitting

Answer 21

False

Question 22

It is the force of blood pushing against the blood vessel walls.

Answer 22

Blood pressure

Question 23

TRUE OR FALSE: Systole is the term to describe when the heart relaxes.
Diastole is the term to describe when the heart contracts.

Answer 23

False

Question 24

TRUE OR FALSE: During systole, the pressure inside the heart increases
while the volume decreases.

Answer 24

True

Question 25

Stenosis is when the opening on the valves is too small causing resistance to ejection. Regurgitation is the
backflow of blood due to improper closure of incompetent aorta.
A. Only the 1st statement is true
B. Only the 2nd statement is true
C. Both statements are true
D. Both statements are false

Answer 25

A. Only the 1st statement is true

Question 26

Blood pressure and heart rate can be regulated by the baroreceptors located at the ___

Answer 26

Carotid sinus

Question 27

Cold pressor test is used to test:
A. Autonomic function
B. Pain tolerance
C. Both
D. Neither

Answer 27

C. Both

Question 28

The first heart sound is heard during
A. Isovolumetric contraction
B. Isovolumetric relaxation
C. Atrial contraction
D. Atrial relaxation
E. Both A and B

Answer 28

A. Isovolumetric contraction