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학습 자료 둘러보기 →The most critical adverse effect of opioid-based PCA is respiratory depression. A respiratory rate of 8 breaths per minute with shallow breathing is a sentinel event requiring immediate intervention.
Apply the ABC (Airway, Breathing, Circulation) framework. Sedation and bradypnea precede respiratory arrest. Continuous monitoring of respiratory rate, depth, and end-tidal CO2 (if available) is essential.
Do not rely solely on pulse oximetry; significant hypoventilation and hypercapnia can occur before oxygen desaturation, especially in patients receiving supplemental oxygen. Immediately stop the PCA, stimulate the patient, and prepare to administer naloxone per protocol.
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