Question

a nurse is caring for a client who is taking diphenhydramine for insomnia and reports drowsiness. the nurse should identify that drowsiness indicates which of the following? therapeutic effect adverse reaction contraindication precaution

Explanation:

Diphenhydramine is an antihistamine with sedative properties. When used for insomnia, drowsiness is the desired therapeutic effect as it helps the client fall asleep. An adverse reaction would be an unwanted harmful effect (e.g., severe allergic reaction). A contraindication is a condition where the drug should not be used (e.g., certain medical conditions). A precaution is a measure to take to avoid problems (e.g., warning about operating machinery). Since the drug is prescribed for insomnia (to induce sleep), drowsiness here is the therapeutic effect.

Answer:

Therapeutic effect