PHYSIOLOGY SYSTEMIC VASCULAR RESISTANCE FINAL EXAM UPDATED FOR 2025
WITH 100% VERIFIED SOLUTIONS 2023-2025
What is the systemic vascular resistance (SVR) of a patient whose mean arterial pressure is 80,
central venous pressure is 10, and cardiac output is 4.5? (Round to nearest whole number)
1244
M&M Chapter 20, page 355
SVR = 80 x [(MAP-CVP)/CO]
Jennifer
What is the peripheral vascular resistance (PVR) of a patient whose mean pulmonary artery
pressure is 12, left atrial pressure is 6 and cardiac output is 4.5? (Round to nearest whole
number)
107
M&M Chapter 20, page 355
PVR = 80 x [(PAP-LAP)/CO]
Jennifer
What term is defined as the intrinsic ability of the myocardium to pump in the absence of
change in preload or afterload?
a. Inotropy
b. Chronotropy
c. Lusitropy
d. Dromotropy
a. Inotropy
M&M Chapter 20, page 355
Jennifer
Match the following terms with the correct definition
a. Hypokinesis
b. Akinesis
c. Dyskinesis
,___ Failure to contract
___ Decreased contraction
___ Paradoxic bulging
b - Failure to contract
a - Decreased contraction
c - Paradoxic bulging
M&M Chapter 20, page 355
Jennifer
Which of the following is the ejection fraction of a patient whose end-diastolic volume is 110,
end-systolic volume is 30, heart rate is 65, and cardiac output is 7 L/min?
a. 0.61
b. 0.50
c. 0.72
d. 0.45
c. 0.72
M&M Chapter 20, page 356
EF = [(EDV-ESV)/EDV]
Jennifer
1. Which of the following formulas correctly expresses Ohm's law in regards to the flow of fluid
(blood) through a tube (blood vessels)?
A. Q = (P1 + P2) / R
B. Q = (P1 x P2) / R
C. Q = (P1 - P2) / R
D. Q = (P2 - P1) / R
Answer: B., Q = (P1 x P2) / R
N & P, pg. 489
Stefania
2. Which of the following is NOT a characteristic of turbulent flow?
A. increasing resistance to flow
B. Reynold's number greater than 2000
C. chaotic movement of molecules
D. parallel flow
,Answer: D., parallel flow
N & P, pg. 489
Stefania
3. Which of the following is a correct formula to calculate Reynold's number?
A. Re = (v x d x p) / n
B. Re = (v x d x n) / p
C. Re = (v x n x p) /d
D. Re = (v x r x p) / n
Answer: A., Re = (v x d x p) / n
N & P, pg. 489
Stefania
4. Which of the following is the correct equation that expresses Poiseuille's Law?
A. Q = ([P1 + P2] r4) / (8 x n x l)
B. Q = ([P1- P2] r4) / (8 x n x l)
C. Q = 8 x n x l / ([P1- P2] r4)
D. Q = ([P1- P2] d4) / (8 x n x 1)
Answer: B., Q = ([P1- P2] r4) / (8 x n x 1)
N & P, pg. 489
Stefania
5. Which of the following characteristics are not true regarding baroreceptors?
A. located in the internal carotid arteries and aortic arch
B. increase impulse production when they are stretched
C. are efficient in long-term blood pressure regulation
D. at MAP of less than 60 mmHg the baroreceptors do not transmit impulses, increases in MAP
between 60-160 mmHg impulses sent to inhibitory vasomotor centers are increased.
Answer: C., are efficient in long-term blood pressure regulation
N & P, pg. 490
Stefania
1. Which of the following is not a compensatory mechanism associated with heart failure?
a. Increased preload
b. Reduction in afterload
c. Activation of the sympathetic nervous system
d. Increased release of AVP
, b. Reduction in afterload
M&M page 367
Willie
2. Which of the following activations during heart failure leads to cardiac dysfunction if not
counteracted with medications?
a. Renin-angiotensin-aldosterone system
b. Negative inotropic response
c. Cholinergic activation
a. Renin-angiotensin-aldosterone system
M&M page 367
Willie
3. Which of the following is not a result of left ventricular failure if untreated?
a. Pulmonary vascular congestion
b. Progressive transudate of fluid in the pulmonary interstitium
c. Reduced PAOP
d. Pulmonary edema
c. Reduced PAOP
M&M page 367
Willie
4. Plasma catecholamines are directly proportional to which of the following?
a. Stimulation of the parasympathetic system
b. Left ventricular failure
c. Degree of sympathetic blockade
d. None of the above
b. Left ventricular failure
M&M page 367
Willie
5. Which of the following does not occur with chronic sympathetic activation?
a. Receptor uncoupling
b. Receptor down-regulation
c. Decrease in catecholamine stores
d. Receptor up-regulation
WITH 100% VERIFIED SOLUTIONS 2023-2025
What is the systemic vascular resistance (SVR) of a patient whose mean arterial pressure is 80,
central venous pressure is 10, and cardiac output is 4.5? (Round to nearest whole number)
1244
M&M Chapter 20, page 355
SVR = 80 x [(MAP-CVP)/CO]
Jennifer
What is the peripheral vascular resistance (PVR) of a patient whose mean pulmonary artery
pressure is 12, left atrial pressure is 6 and cardiac output is 4.5? (Round to nearest whole
number)
107
M&M Chapter 20, page 355
PVR = 80 x [(PAP-LAP)/CO]
Jennifer
What term is defined as the intrinsic ability of the myocardium to pump in the absence of
change in preload or afterload?
a. Inotropy
b. Chronotropy
c. Lusitropy
d. Dromotropy
a. Inotropy
M&M Chapter 20, page 355
Jennifer
Match the following terms with the correct definition
a. Hypokinesis
b. Akinesis
c. Dyskinesis
,___ Failure to contract
___ Decreased contraction
___ Paradoxic bulging
b - Failure to contract
a - Decreased contraction
c - Paradoxic bulging
M&M Chapter 20, page 355
Jennifer
Which of the following is the ejection fraction of a patient whose end-diastolic volume is 110,
end-systolic volume is 30, heart rate is 65, and cardiac output is 7 L/min?
a. 0.61
b. 0.50
c. 0.72
d. 0.45
c. 0.72
M&M Chapter 20, page 356
EF = [(EDV-ESV)/EDV]
Jennifer
1. Which of the following formulas correctly expresses Ohm's law in regards to the flow of fluid
(blood) through a tube (blood vessels)?
A. Q = (P1 + P2) / R
B. Q = (P1 x P2) / R
C. Q = (P1 - P2) / R
D. Q = (P2 - P1) / R
Answer: B., Q = (P1 x P2) / R
N & P, pg. 489
Stefania
2. Which of the following is NOT a characteristic of turbulent flow?
A. increasing resistance to flow
B. Reynold's number greater than 2000
C. chaotic movement of molecules
D. parallel flow
,Answer: D., parallel flow
N & P, pg. 489
Stefania
3. Which of the following is a correct formula to calculate Reynold's number?
A. Re = (v x d x p) / n
B. Re = (v x d x n) / p
C. Re = (v x n x p) /d
D. Re = (v x r x p) / n
Answer: A., Re = (v x d x p) / n
N & P, pg. 489
Stefania
4. Which of the following is the correct equation that expresses Poiseuille's Law?
A. Q = ([P1 + P2] r4) / (8 x n x l)
B. Q = ([P1- P2] r4) / (8 x n x l)
C. Q = 8 x n x l / ([P1- P2] r4)
D. Q = ([P1- P2] d4) / (8 x n x 1)
Answer: B., Q = ([P1- P2] r4) / (8 x n x 1)
N & P, pg. 489
Stefania
5. Which of the following characteristics are not true regarding baroreceptors?
A. located in the internal carotid arteries and aortic arch
B. increase impulse production when they are stretched
C. are efficient in long-term blood pressure regulation
D. at MAP of less than 60 mmHg the baroreceptors do not transmit impulses, increases in MAP
between 60-160 mmHg impulses sent to inhibitory vasomotor centers are increased.
Answer: C., are efficient in long-term blood pressure regulation
N & P, pg. 490
Stefania
1. Which of the following is not a compensatory mechanism associated with heart failure?
a. Increased preload
b. Reduction in afterload
c. Activation of the sympathetic nervous system
d. Increased release of AVP
, b. Reduction in afterload
M&M page 367
Willie
2. Which of the following activations during heart failure leads to cardiac dysfunction if not
counteracted with medications?
a. Renin-angiotensin-aldosterone system
b. Negative inotropic response
c. Cholinergic activation
a. Renin-angiotensin-aldosterone system
M&M page 367
Willie
3. Which of the following is not a result of left ventricular failure if untreated?
a. Pulmonary vascular congestion
b. Progressive transudate of fluid in the pulmonary interstitium
c. Reduced PAOP
d. Pulmonary edema
c. Reduced PAOP
M&M page 367
Willie
4. Plasma catecholamines are directly proportional to which of the following?
a. Stimulation of the parasympathetic system
b. Left ventricular failure
c. Degree of sympathetic blockade
d. None of the above
b. Left ventricular failure
M&M page 367
Willie
5. Which of the following does not occur with chronic sympathetic activation?
a. Receptor uncoupling
b. Receptor down-regulation
c. Decrease in catecholamine stores
d. Receptor up-regulation
