Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CVP exam 2 > practice test > Flashcards

practice test Flashcards

1
Q
  1. In most tissue beds, blood flow is regulated in proportion to which of the following?
    a. arterial blood pressure
    b. cardiac output
    c. local metabolism
    d. mean circulatory filling pressure
A

c. local metabolism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q 
2.  Consider the resistance in the following tissue beds:
		coronary = .40 mmHg/ml/min
		brain       = .13 mmHg/ml/min
		liver       = .08 mmHg/ml/min
		kidneys  = .10 mmHg/ml/min

What is the total peripheral resistance?

a. greater than .71
b. between .08 and .4
c. less than .08
d. undeterminable
A

c. less than .08

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q 
2.  Consider the resistance in the following tissue beds:
		coronary = .40 mmHg/ml/min
		brain       = .13 mmHg/ml/min
		liver       = .08 mmHg/ml/min
		kidneys  = .10 mmHg/ml/min
  1. Using the data from question 2, which tissue bed would have the greatest flow?
    a. coronary
    b. brain
    c. liver
    d. kidneys
A

c. liver

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
  1. In the following vessels the flow rate is identical, which vessel is offering the greatest resistance to flow?

a. P1 50 P2 25
b. P1 70 P2 60
c. P1 80 P2 65

A

a P1 50 P2 25

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
  1. A broad band Doppler reading is indicative of what type of flow?
    a. laminar
    b. turbulent
    c. intermittent
    d. flow has ceased
A

b. turbulent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
  1. If a vessel with a length of 100 cm has a cross sectional area of .5 cm2 , and velocity of flow of 10 cm/sec. The pressure drop across that length is 10 mmHg. What is the flow in that vessel?
    a. 10 ml/min
    b. 20 ml/min
    c. 100 ml/min
    d. 200 ml/min
    e. 300 ml/min
A

P = V (A) P = 10 cm/sec (.5cm2) P = 5 ml/sec (60 sec/min)
P = 300 ml/min
e. 300 ml/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
  1. The vascular compartment with the greatest total cross sectional area is which of the following?
    a. aorta
    b. large arteries
    c. capillaries
    d. large veins
A

c. capillaries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  1. Which of the following is not characteristic of parallel circuitry?
    a. independence of flow control
    b. maximizes total peripheral resistance
    c. maximizes oxygen delivery to tissues
    d. decreases work load on the heart
A

b. maximizes total peripheral resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
  1. A small change in volume producing a large change in pressure is characteristic of which vascular compartment?
    a. systemic arteries
    b. systemic veins
    c. microcirculation
    d. all of the above
A

a. systemic arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
  1. Acetylcholine binding to the vascular endothelium has what effect?
    a. vasodilatation by causing nitric oxide release
    b. vasodilatation by causing adenosine release
    c. vasoconstriction by triggering muscle spasm
    d. vasoconstriction by stimulating the sympathetic nervous system
A

a. vasodialation caused by nitric oxide release

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
  1. What is the effect of sympathetic nervous stimulation on most vascular smooth muscle?
    a. vasodilatation mediated by alpha receptors
    b. vasodilatation mediated by beta receptors
    c. vasoconstriction mediated by alpha receptors
    d. vasoconstriction mediated by beta receptors
A

c. vasoconstriction mediated by alpha receptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
  1. During widespread sympathetic nervous system stimulation, which tissue bed would show the least increase in vascular resistance?
    a. stomach
    b. kidney
    c. lung
    d. liver
A

c. lung

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
  1. As a tissue becomes more active, how is blood flow to that tissue increased?
    a. tissue releases local vasodilators
    b. reflex increase in systemic blood pressure
    c. sympathetic induced local vasodilatation
    d. parasympathetic induced local vasodilatation
A

a. tissue releases local vasodilators

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
  1. At a given mean circulatory filling pressure what happens to venous return as central venous pressure increases?
    a. increases
    b. decreases
    c. stays constant
A

b. decreases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
  1. If cardiac output is stopped, arterial pressure will be expected to fall until it equals which of the following?
    a. critical closing pressure
    b. mean circulatory filling pressure
    c. pulse pressure
    d. central venous pressure
A

a. critical closing pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
  1. In a healthy young adult comment about tissue flow during diastole?
    a. it ceases
    b. maintained by recoil of the arteries
    c. maintained by release of local vasodilators
    d. maintained by parasympathetic vasodilatation
A

b. maintained by recoil of the arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q
  1. If blood flow to a tissue doubles from 200 ml/min to 400 ml/min, and the AV O2 difference falls from .05 ml O2/ml to .025 ml O2/ml. Comment on the increase in flow.
    a. it is a functional increase in flow
    b. it is due to an increase in tissue metabolism
    c. it is likely due to shunting
    d. it is due to the release of local vasodilators
A

c. it is likely due to shunting

18
Q
  1. What increases the plasma colloid osmotic effect by about 50%?
    a. positive charges on protein attracting and holding negative ions like chloride
    b. negative changes on protein attracting and holding positive ions like sodium
    c. the large quantity of fibrinogen that is converted to fibrin
    d. the natural charge attraction of sodium and cloride
A

b. negative changes on protein attracting and holding positive ions like sodium

19
Q
  1. Which of the following effects is not attributed to slow breathing (6 breaths/minute)?
    a. increased resting oxygen saturation
    b. increased sympathetic activity
    c. decreased chemoreflex activation
    d. decreased mean arterial blood pressure
A

b. increased sympathetic activity

20
Q
  1. What effect does decreasing velocity have on blood viscosity?

a. increases
b. decreases
c. no effect

A

a. increases

21
Q
  1. How does fibrinogen decrease blood viscosity?
    a. causes local vasodilation
    b. by thinning out plasma
    c. makes RBC’s more flexible
    d. reduces the number of RBC’s
A

c. makes RBC’s more flexible

22
Q

Use the following graph to answer questions 22-23
VR

	0	5	10	CVP
  1. Considering vascular function as central venous pressure increases, what happens to venous return?
    a. increases
    b. decreases
    c. stays constant
A

b. decreases

23
Q
  1. What is the mean circulatory filling pressure equal to?

a. 0 mmHg b. 5 mmHg c. 10 mmHg d. 15 mmHg

A

c. 10 mmHg

24
Q
  1. The chronic use of anti-inflammatory drugs could be expected to inhibit which of the following processes?
    a. local vasodilatation
    b. angiogenesis
    c. glomerular filtration
    d. hydraulic filtering
A

b. angiogenesis

25
Q
  1. Consider the following data:
    average capillary hydrostatic P = 17 mmHg
    average capillary colloid osmotic P = 28 mmHg
    average interstitial hydrostatic P = -2 mmHg
    average interstitial colloid osmotic P = 9 mmHg
a. filtration > reabsorption
b. filtration
A

c. filtration = reabsorption

26
Q
  1. Which brainstem area is tonically active and is associated with a tonic SNS outflow?
    a. neurons associated with the nucleus tractus solitarius
    b. neurons anterolateral in the upper medulla and pons
    c. neurons anterolateral in the lower medulla
    d. neurons posteromedially in the medulla
A

b. neurons anterolateral in the upper medulla and pons

27
Q
  1. Which of the following substance is associated with local vasodilatation?
    a. norepinephrine
    b. angiotensin II
    c. antidiurectic hormone
    d. adenosine
A

d. adenosine

28
Q
  1. What high resistance microvessels control local blood flow by intergrating multiple input which determine lumen diameter?
    a. arterioles
    b. capillaries
    c. venules
    d. large arteries
A

a. arterioles

29
Q
  1. Compare the distensibility of the following vessels.
    Vessel one: Vessel two:
    Orig vol. = 20 ml Orig vol. = 10 ml
     vol = 1 ml  vol = 1 ml
     pressure = 2 mmHg  pressure = 2 mmHg
a. vessel one is more distensible than vessel two
b. vessel two is more distensible than vessel one
c. vessel one and vessel two are equally distensible
A

distensibility = ^Vol/^P (iVol) vessel 1 = 1ml/2mmHg (20ml) = 10
vessel 2 = 1ml/2mmHg (10ml) = 5
b. vessel two is more distensible than vessel one

30
Q
  1. Which of the following may act at the level of the CNS in the development of hypotension?
    a. acetylcholine
    b. norepinephrine
    c. adenosine
    d. nitric oxide
A

d. nitric oxide

31
Q
  1. In the kidney, how does SNS stimulation, increase angiotensin formation?
    a. by stimulation of the JG cells to release angiotensin
    b. by stimulation of the JG cells to release renin
    c. by stimulation of the vasa recti to release vasopressin
    d. by stimulation of the adrenal cortex to release aldosterone
A

b. by stimulation of the JG cells to release renin

32
Q
  1. In response to a fall in systemic arterial blood pressure, which of the following changes would be counterproductive in offsetting that fall?
    a. increase in SNS stimulation
    b. increase in renin release
    c. increase in vasopressin release
    d. increase in ANP release
A

d. increase in ANP release

33
Q
  1. In the face of rising arterial blood pressure, which of the following responses would autoregulate both renal blood flow and glomerular filtration?
    a. constriction of the afferent arterioles
    b. constriction of the efferent arterioles
    c. dilation of the afferent arterioles
    d. dilation of the efferent arterioles
A

a. constriction of the afferent arterioles

34
Q
  1. What effect does stimulation of baroreceptors, have on sympathetic outflow?

a. increases
b. decreases
c. no effect

A

b. decreases

35
Q
  1. During systole, what is happening to baroreceptor activity?

a. increasing
b. decreasing
c. stays constant

A

a. increasing

36
Q
  1. In the fetus, the ductus arteriosis shunts blood from the pulmonary artery to the aorta returning primarily from what vessel?
    a. inferior vena cava
    b. superior vena cava
    c. azygous veins
    d. umbilical veins
A

b. superior vena cava

37
Q
  1. What is the function of the ductus venosus in the fetus?
    a. shunt blood from the pulmonary artery into the aorta
    b. shunt blood from the right atrium into the left atrium
    c. shunt blood from the umbilical vein into the inferior vena cava
    d. shunt blood away from the lungs
A

c. shunt blood from the umbilical vein into the inferior vena cava

38
Q
  1. In which of the following tissue beds does sympathetic nervous system stimulation cause a metabolically induced local increase in blood flow?
    a. heart
    b. active skeletal muscle
    c. GI tract
    d. brain
A

a. heart

39
Q
  1. During exercise, which of the following normally decreases?
    a. heart rate
    b. active muscle blood flow
    c. diastolic blood pressure
    d. VO2
A

d. VO2

40
Q
  1. During exercise most of the increase in cardiac output is due to which of the following?
    a. increase in heart rate
    b. increase in stroke volume
    c. decrease in central venous pressure
    d. increase in ventilation
A

a. increase in heart rate

CVP exam 2 (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions