the patient received morphine for pain. which comment by the patient can the nurse assess to be a side effect of morphine? The patient received morphine for pain. Which comment by the patient does the nurse assess to be a side effect of morphine? 1. My ears are constantly ringing. 2. My heart feels like it is skipping beats. 3. I feel like I am going to throw up. 4. I feel cold shivers all over.