Which of the following gases would diffuse fastest across the alveolar-capillary membrane?
a. Air
b. Carbon dioxide
c. O2
d. Nitrogen
ANS: B
Carbon dioxide diffuses approximately 20 times faster across the alveolar-capillary membrane than does O2, because of its much higher solubility in plasma.
Health Professions
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If a 1 L IV bag is infused over 6 hours, the rate of infusion would be ________ mL/hr
A) 30 B) 60 C) 128 D) 167
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____________________ live within or upon another organism called the host.
Fill in the blank(s) with the appropriate word(s).
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An air-fluid level in the pleural space typically indicates:
a. tension pneumothorax. b. hydropneumothorax. c. pleural effusion. d. an aerobic infection.
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Which acronym represents an organization that serves as both an insurer and provider of medical services?
a. CDC b. CEO c. FDA d. HMO
Health Professions