A nurse is assisting with the care of a client who last used heroin 8 hr ago. Which of the following findings should the nurse identify as a manifestation of opioid withdrawal?

A. Tachycardia: Tachycardia, or an increased heart rate, is a common manifestation of opioid withdrawal. Withdrawal stimulates the sympathetic nervous system, leading to symptoms like tachycardia, sweating, anxiety, and restlessness. B. Miosis: Miosis, or pinpoint pupils, is associated with opioid intoxication, not withdrawal. During withdrawal, pupils are often dilated (mydriasis) rather than constricted. C. Hypotension: Hypertension, not hypotension, is more commonly seen during opioid withdrawal due to increased sympathetic nervous system activity. Blood pressure tends to rise rather than fall during withdrawal episodes. D. Sedation: Sedation is a sign of opioid intoxication rather than withdrawal. Clients experiencing withdrawal are more likely to display agitation, irritability, and insomnia rather than drowsiness or sedation.