Final answer:
The presence of a recent morphine injection indicates that additional assistance is needed to transfer the patient from the bed to the stretcher.
Step-by-step explanation:
The presence of an injection of morphine 30 minutes ago indicates that additional assistance is needed to transfer the patient from the bed to the stretcher. This is because the morphine injection may affect the patient's ability to safely follow directions and participate in the transfer. Additional help would be necessary to ensure the safe transfer of the patient.