What is the definition of pharmacodynamics?
1. The mechanisms by which drugs affect the body
2. Complying with one's medication regimen as prescribed
3. Taking multiple medications
4. The mechanisms by which the body handles the drug
Correct Answer: 1
Rationale 1: Pharmacodynamics deals with how a drug affects bodily systems.
Rationale 2: This is the definition of adherence, not pharmacodynamics.
Rationale 3: This is the definition of polypharmacy, not pharmacodynamics.
Rationale 4: This is the definition of pharmacokinetics, not pharmacodynamics.
Global Rationale: Pharmacodynamics deals with how a drug affects bodily systems. Adherence is complying with one's medication regimen, as prescribed. Polypharmacy is taking multiple medications. Pharmcokinetics is the mechanism by which the body handles the drug.
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