A nurse is reinforcing teaching with a client who is using a diaphragm to prevent pregnancy. Which of the following statements should the nurse include in the teaching?

Rationale: A. "You should replace your diaphragm every 2 years": Diaphragms generally need to be replaced every 1 to 2 years, depending on the manufacturer’s guidelines and wear and tear. However, it is more important to be aware of refitting needs related to physiological changes. B. "You should be refitted for your diaphragm if you have a 10 percent weight fluctuation.": Significant weight changes, usually around 10 to 15 percent, can alter pelvic anatomy and affect diaphragm fit, increasing the risk of contraceptive failure. Therefore, refitting is recommended after notable weight fluctuations. C. "You should insert the diaphragm when your bladder is full.": The bladder should be empty when inserting the diaphragm to avoid discomfort and ensure proper placement over the cervix. A full bladder can cause displacement and increase the risk of failure. D. "You should remove your diaphragm 4 hours after intercourse.": The diaphragm should be left in place for at least 6 hours after intercourse to ensure adequate sperm immobilization and contraceptive effectiveness. Removing it too early may increase the risk of pregnancy.