(Introduction: In a ward of Surgical Department. The patient is suffering from bad pain, and the nurse has prepared for giving the patient an injection to relieve the pain. Then the nurse comes to the patient's and take the first step to give an injection.)

　　Nurse(Walking to the patient): Hello! Are you Mr Patient？

　　Patient: Yes.

　　Nurse(Taking out the syringe): Now I have an injection for you. I would like to give this injection on your buttocks to relieve the pain.

　　Patient:OK.

　　Nurse: I'm going to sterilize the skin with tincture. Did it hurt？ (cleaning the skin with an tincture sponge, and giving the injection)

　　Patient: No. Never felt a thing. Thank you.

　　…

　　Patient: I have so much pain in my wound. I need medicine for pain, nurse.

　　Nurse: Will you show me the dressing？ (helping the patient to show)The dressing is clean and dry. I gave you a pain killer one hour ago. I t seems to be a little bit early to give you another one now. This medicine has a very strong effect and the doctor has ordered medication for 2 to 3 hours interval. Can you stand it for a while?

　　Patient: Oh, no. I can't stand it any longer.

　　Nurse: I see. Then I will call the doctor. Please relax and don't worry.