Exam 4: NSG 3280 / NSG3280 |
Pathophysiology for Nurses I Exam|
Questions with 100% Verified Answers |
Grade A | Galen | Latest Update
The movement of blood through the vascular system is opposed by the
force of:
a. viscosity.
b. the vessel length.
c. the vessel radius.
d. resistance. - Correct Answer - d. resistance
Which causes vasoconstriction?
a. Norepinephrine
b. Calcium channel blocker
c. a-Adrenergic antagonist
d. Acetylcholine - Correct Answer - a. Norepinephrine
When systemic vascular resistance is significantly decreased, blood
flow:
a. increases.
b. decreases.
,c. stays the same.
d. moves to the extremities. - Correct Answer - b. decrease
Blood flow is slow through capillaries because capillaries:
a. are so far away from the heart.
b. have the largest total cross-sectional area.
c. are so narrow.
d. have no smooth muscle. - Correct Answer - B. have the largest total
cross-sectional area.
What is the effect on resistance if the radius of a vessel is halved?
a.Resistance doubles.
b.Resistance decreases by a factor of 16.
c. Resistance decreases by half.
d. Resistance increases by a factor of 16. - Correct Answer - d.
Resistance increases by a factor of 16.
Clinical manifestations of chronic arterial obstruction to the lower
extremities include:
a. edema.
b. intermittent claudication.
c. decreased pressure proximal to the obstruction.
d. distal hyperemia. - Correct Answer - b. intermittent claudication.
Peripheral edema is a result of:
a. arterial insufficiency.
b. venous thrombosis.
c. hypertension.
d. atherosclerosis. - Correct Answer - b. venous thrombosis
,The relationship of blood flow (Q), resistance (R), and pressure (P) in a
vessel can be expressed by which equation?
a. Q= p/R
b. Q= R/P
c. R = PQ
d. P = Q/R - Correct Answer - a. Q= p/R
Risk factors for atherosclerosis include
a. female gender.
b. hyperlipidemia.
c. High-protein diet
d. Low-fiber diet - Correct Answer - b. hyperlipidemia
Which is not a manifestation of acute arterial obstruction?
a. Pain
b. Purpura
c. Pallor
d. Pulselessness - Correct Answer - b. Purpura
The goal of long-term heparin for the management of a deep vein
thrombosis is to:
a. relieve edema.
b. prevent clot dislodgement.
c. dissolve the thrombus.
d. prevent further clot formation. - Correct Answer - d. prevent further
clot formation.
Which condition enhances lymphatic flow?
, a. Increased tissue hydrostatic pressure
b. Increased interstitial fluid colloid osmotic pressure
c. Decreased capillary hydrostatic pressure
d. Increased capillary oncotic pressure - Correct Answer - b. Increased
interstitial fluid colloid osmotic pressure
Tissues are able to autoregulate their rate of blood flow by controlling:
a. perfusion pressure.
b. arterial blood pressure.
c. vascular resistance.
d. venous return to the heart. - Correct Answer - c. vascular resistance.
Blood flow throughout the periphery is regulated by:
a. cardiac output.
b. the autonomic nervous system.
c. velocity.
d. hemodynamics. - Correct Answer - B. autonomic nervous system
Venous obstruction leads to edema because it - pressure.
a. increases capillary oncotic
b. increases arterial blood
c. decreases tissue
d. increases capillary hydrostatic - Correct Answer - increases capillary
hydrostatic
A serious complication of deep vein thrombosis is:
a. stroke.
b. hypertensive crisis.
c. extremity necrosis.
Pathophysiology for Nurses I Exam|
Questions with 100% Verified Answers |
Grade A | Galen | Latest Update
The movement of blood through the vascular system is opposed by the
force of:
a. viscosity.
b. the vessel length.
c. the vessel radius.
d. resistance. - Correct Answer - d. resistance
Which causes vasoconstriction?
a. Norepinephrine
b. Calcium channel blocker
c. a-Adrenergic antagonist
d. Acetylcholine - Correct Answer - a. Norepinephrine
When systemic vascular resistance is significantly decreased, blood
flow:
a. increases.
b. decreases.
,c. stays the same.
d. moves to the extremities. - Correct Answer - b. decrease
Blood flow is slow through capillaries because capillaries:
a. are so far away from the heart.
b. have the largest total cross-sectional area.
c. are so narrow.
d. have no smooth muscle. - Correct Answer - B. have the largest total
cross-sectional area.
What is the effect on resistance if the radius of a vessel is halved?
a.Resistance doubles.
b.Resistance decreases by a factor of 16.
c. Resistance decreases by half.
d. Resistance increases by a factor of 16. - Correct Answer - d.
Resistance increases by a factor of 16.
Clinical manifestations of chronic arterial obstruction to the lower
extremities include:
a. edema.
b. intermittent claudication.
c. decreased pressure proximal to the obstruction.
d. distal hyperemia. - Correct Answer - b. intermittent claudication.
Peripheral edema is a result of:
a. arterial insufficiency.
b. venous thrombosis.
c. hypertension.
d. atherosclerosis. - Correct Answer - b. venous thrombosis
,The relationship of blood flow (Q), resistance (R), and pressure (P) in a
vessel can be expressed by which equation?
a. Q= p/R
b. Q= R/P
c. R = PQ
d. P = Q/R - Correct Answer - a. Q= p/R
Risk factors for atherosclerosis include
a. female gender.
b. hyperlipidemia.
c. High-protein diet
d. Low-fiber diet - Correct Answer - b. hyperlipidemia
Which is not a manifestation of acute arterial obstruction?
a. Pain
b. Purpura
c. Pallor
d. Pulselessness - Correct Answer - b. Purpura
The goal of long-term heparin for the management of a deep vein
thrombosis is to:
a. relieve edema.
b. prevent clot dislodgement.
c. dissolve the thrombus.
d. prevent further clot formation. - Correct Answer - d. prevent further
clot formation.
Which condition enhances lymphatic flow?
, a. Increased tissue hydrostatic pressure
b. Increased interstitial fluid colloid osmotic pressure
c. Decreased capillary hydrostatic pressure
d. Increased capillary oncotic pressure - Correct Answer - b. Increased
interstitial fluid colloid osmotic pressure
Tissues are able to autoregulate their rate of blood flow by controlling:
a. perfusion pressure.
b. arterial blood pressure.
c. vascular resistance.
d. venous return to the heart. - Correct Answer - c. vascular resistance.
Blood flow throughout the periphery is regulated by:
a. cardiac output.
b. the autonomic nervous system.
c. velocity.
d. hemodynamics. - Correct Answer - B. autonomic nervous system
Venous obstruction leads to edema because it - pressure.
a. increases capillary oncotic
b. increases arterial blood
c. decreases tissue
d. increases capillary hydrostatic - Correct Answer - increases capillary
hydrostatic
A serious complication of deep vein thrombosis is:
a. stroke.
b. hypertensive crisis.
c. extremity necrosis.
