In the PACU, which vital sign abnormality could indicate a need for emergent intervention?

A respiratory rate of 10 breaths per minute is a significant concern in the Post-Anesthesia Care Unit (PACU) because it suggests potential respiratory depression or compromise. Normal respiratory rates typically range from 12 to 20 breaths per minute for adults. When the rate falls below this range, it can indicate inadequate ventilation, which can lead to hypoxia and subsequent multi-organ failure if not addressed promptly. In the context of post-anesthesia recovery, where patients may still be under the effects of sedatives or anesthetics that depress respiratory function, a low respiratory rate should prompt immediate reassessment and potential interventions, such as supplemental oxygen or airway management. This makes it critical to monitor and respond to this abnormality swiftly.

Conversely, the other vital signs listed—heart rate of 88 beats per minute, body temperature of 98.6°F, and blood pressure of 120/80 mmHg—are all within normal limits and do not indicate an immediate need for emergent intervention. While any vital sign irregularities should always be monitored, the respiratory rate of 10 represents a clear and immediate risk to patient safety that requires urgent attention.