GMS6402 MODULE 6: Pulmonary Circulation Exam Questions With Verified Answers
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Course
GMS6402
Institution
GMS6402
GMS6402 MODULE 6: Pulmonary
Circulation Exam Questions With Verified
Answers
How much time do red blood cells spend in the pulmonary capillary bed?
How many alveoli do they traverse? - answer.75 seconds
3
What percent of the cardiac output does the pulmonary circulation receive? - answer100%
...
GMS6402 MODULE 6: Pulmonary
Circulation Exam Questions With Verified
Answers
How much time do red blood cells spend in the pulmonary capillary bed?
How many alveoli do they traverse? - answer✔.75 seconds
3
What percent of the cardiac output does the pulmonary circulation receive? - answer✔100%
The pulmonary circulation is a ____ pressure system; ____ mm Hg in ________ _______ the vs.
~90 mm Hg in the ________. - answer✔low - ~14
pulmonary artery
aorta
Is pulmonary circulation high or low compliant? - answer✔HIGH
it can tolerate large increases in blood volume (V) with little to no change in blood pressure (P)
What is it called when blood filled capillaries are already open, but they dilate even more in
order to accommodate increased blood volume? - answer✔Distension
What is it called when capillaries that previously has little to no blood flow are utilized? -
answer✔Recruitment
There is slightly more ventilation at the _____ than the ______ of the lung. - answer✔base
apex
Perfusion is significantly impacted by_______? - answer✔gravity
Because of external factors, there is significantly more perfusion at the _____ of the lung than
the ______ - answer✔base
apex
One extreme of ventilation is _______. It occurs when the lungs are not ventilated but they are
perfused with blood. - answer✔Shunt
One type of ventilation is _______. This happens when the V/Q ratio is around .8. It is higher in
the apex and lower in the base. - answer✔Normal ratio
One extreme of ventilation is _______. This occurs when the lungs are still being ventilated but
there is no blood perfusion. - answer✔Pulmonary Embolism
List the 5 causes of clinical hypoxemia: - answer✔1. Hypoventilation
2. Altitude
3. Diffusion Limitation
4. Shunt
5. V/Q mis‐match
V/Q mis‐match is the most common
Name a Low Flow Disorder (1) - answer✔Pulmonary Embolism‐ A blood clot (thrombosis)
forms in the deep veins of the leg and then detaches
Name a High Flow Disorder (3) - answer✔Left Heart Failure
Pulmonary Hypertension
Postprandial Dyspnea
What is the premise of pulmonary edema? - answer✔It increases the path of diffusion and
washes away surfactant. = the work of breathing increases
Loss of surfactant also causes alveoli to collapse.
Low perfusion pressure in the pulmonary circulation = - answer✔a limit in the amount of liquid
that enters the interstitial space.
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