Normal ventilation and perfusion in a healthy patient maintains a 4:5 ratio of ventilation to blood flow. If 8 liters of blood are perfused through the lungs, how much gas is available in the alveoli for exchange?
A) 0.8 L
B) 6.4 L
C) 10 L
D) 20 L
B
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With normal aging, the number of nerve cells in the brain
a. increases. b. stays the same. c. varies. d. decreases.
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Px
What will be an ideal response?
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When bright light is used in medical offices, it
A. allows patients to see their surroundings. B. can be hazardous because patients may trip or bump into hard-to-see items. C. is too bright to facilitate reading. D. can be harsh on the eyes and create a glare.
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When standing on the right foot and attempting to abduct the left hip as much as possible, which of the following will most likely result?
a. Left lateral pelvic rotation b. Posterior pelvic rotation c. Right lateral pelvic rotation d. Right transverse pelvic rotation
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