A nurse is assessing a school-age child who is receiving morphine. For which of the following adverse effects should the nurse monitor?

A. Morphine is more likely to cause hypotension (low blood pressure), not hypertension. B. Stevens-Johnson syndrome is a severe allergic reaction not typically associated with morphine. C. Prolonged wound healing is often associated with corticosteroids, not opioids like morphine. D. Bradypnea (slowed breathing) is a common adverse effect of opioids, including morphine. It's crucial to monitor respiratory rate and depth closely in patients receiving morphine.