What vital sign is most commonly monitored for a patient receiving opioid analgesics?

Respiratory rate is the vital sign most commonly monitored for a patient receiving opioid analgesics because opioids can have a significant impact on the respiratory system. These medications can cause respiratory depression, which is a reduction in the rate and depth of breathing. This effect poses a risk for patients, especially in those who are opioid-naive or have other respiratory issues.

Monitoring the respiratory rate allows healthcare providers to detect any early signs of this potentially life-threatening side effect. A decrease in respiratory rate may indicate that the patient is experiencing significant sedation or respiratory depression, necessitating immediate intervention such as administering naloxone if necessary.

While monitoring other vital signs like temperature, heart rate, or blood pressure is also important in patient care, the respiratory rate takes precedence due to the specific risks associated with opioid use. This focus helps ensure patient safety and effective management of their analgesic therapy.