A drug leaves the bloodstream and enters body tissues before reaching its site of action. Which pharmacokinetic process is occurring?
Correct answer: B. Distribution
- A. Absorption
- B. Distribution
- C. Metabolism
- D. Excretion
Explanation
Distribution is the movement of a drug from the blood into tissues and body fluids. Absorption is entry into the bloodstream, metabolism changes the drug chemically, and excretion removes it from the body.
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About Principles of Pharmacology
Pharmacology examines drug sources, names, dosage forms, mechanisms of action, absorption, distribution, metabolism and excretion. Questions cover pharmacokinetics versus pharmacodynamics, therapeutic effects, adverse reactions, contraindications, drug interactions, tolerance, dependence and the safety responsibilities of the nurse.
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