A patient asks why the same medicine may produce different effects in different people. Which explanation is most accurate?
Correct answer: B. Age, organ function and genetics can alter drug response
- A. All patients absorb and eliminate medicines identically
- B. Age, organ function and genetics can alter drug response
- C. Drug effects depend only on the colour of the tablet
- D. A medicine always has the same effect at every dose
Explanation
Age, liver and kidney function, genetics, nutrition and other medicines can change drug absorption, metabolism, elimination and response. Therefore, the same prescribed dose may not produce the same effect in every patient.
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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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