What is the process by which a drug is transported by circulating body fluids to receptor sites?
a. Osmosis
b. Distribution
c. Absorption
d. Biotransformation
ANS: B
Distribution refers to the ways in which drugs are transported by the circulating body fluids to the sites of action (receptors), metabolism, and excretion. Osmosis is the process of moving solution across a semipermeable membrane to equalize the dilution on each side. Absorption is the process by which a drug is transferred from its site of entry into the body to the circulating fluids for distribution. Biotransformation, also called metabolism, is the process by which the body inactivates drugs.
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