Problem: Julia Barnett, a new diabetic, is planning to be discharged from the hospital on regular sliding scale insulin. The nurse is planning the first teaching on how to inject subcutaneous insulin. Please answer the important questions the nurse will include Ms. Barnett's teaching. What three sites would the nurse teach Ms. Barnett to use for her injections? How is the skin held prior to inserting the needle? Should Ms. Barnett massage the area after giver herself the injection? How will the nurse evaluate the effectiveness of the teaching?