A Patient Is Receiving Morphine Sulfate Intravenously (IV) for Right

A patient is receiving morphine sulfate intravenously (IV) for right flank pain associated with a kidney stone in the right ureter. The patient also complains of right inner thigh pain and asks the nurse whether something is wrong with the right leg. In responding to the question, the nurse understands that the patient

A) is experiencing referred pain from the kidney stone.
B) has neuropathic pain from nerve damage caused by inflammation.
C) has acute pain that may be progressing into chronic pain.
D) is experiencing pain perception that has been affected by the morphine received earlier.