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학습 자료 둘러보기 →The highest priority for a patient on a PCA pump with morphine is monitoring for opioid-induced respiratory depression (OIRD). Morphine binds to mu-opioid receptors in the brainstem, blunting the response to CO2 and causing hypoventilation.
Assess respiratory rate and oxygen saturation continuously. A rate below 12 breaths/min is a critical warning sign requiring immediate intervention to prevent apnea and respiratory arrest.
Sedation always precedes respiratory depression. Do not rely on pulse oximetry alone; capnography or direct observation of rate and depth is essential to detect early hypoventilation.
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