A nurse is assessing a client's response to receiving morphine for postoperative pain management. Which of the following findings is the nurse's priority?

A. Hypotension: While hypotension can be a concern with opioid use, it is less immediately life-threatening compared to respiratory depression, which is the most dangerous side effect of morphine. Monitoring BP is important, but the priority is airway and breathing. B. Bradycardia: Bradycardia is a possible side effect of morphine, but it does not usually present an immediate risk to the client's life unless it is severe. Respiratory depression poses a greater risk to the client’s oxygenation status. C. Bradypnea: Bradypnea (slow breathing) is the most critical concern when a client is receiving morphine. Opioids like morphine can cause respiratory depression, which can be life-threatening. This should be the nurse's priority to assess and address immediately. D. Pruritus: Pruritus (itching) is a common side effect of morphine, but it is not life-threatening. While it can be uncomfortable, it does not require immediate intervention compared to respiratory depression.