Which finding best suggests that a drug is producing a toxic effect rather than its intended therapeutic effect?
Correct answer: C. Severe confusion after a sedative
- A. Pain relief after an analgesic
- B. Reduced blood pressure after an antihypertensive
- C. Severe confusion after a sedative
- D. Lower fever after an antipyretic
Explanation
Severe confusion after a sedative may indicate excessive or toxic central nervous system depression and requires assessment. Pain relief, lower blood pressure and reduced fever are expected therapeutic effects when they remain within safe limits.
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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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