A client receiving morphine for postoperative pain has a respiratory rate of 8 breaths per minute. What is the priority action?

Respiratory depression is the most serious adverse effect of opioids. A respiratory rate below 12 in adults warrants attention; below 10 is concerning; below 8 is critical. Priority actions: (1) Hold further opioid doses; (2) Stimulate the client (call name, gentle shake) and encourage deep breathing; (3) Assess oxygen saturation, level of consciousness, pupil size (opioids cause miosis), other vital signs; (4) Reposition for airway patency; (5) Have naloxone (Narcan) ready and administer if criteria met: 0.04-0.1 mg IV titrated to effect (full dose 0.4-2 mg if severe); (6) Provide oxygen and ventilation support as needed; (7) Notify provider. Naloxone administration: titrate to restore adequate respirations without precipitating withdrawal pain. Naloxone has a shorter half-life than most opioids, so repeat doses or infusion may be needed. After naloxone, the client may experience severe pain (the reason for the original opioid) — manage with non-opioid alternatives initially and resume opioids cautiously once safe.