What information will the nurse provide when educating a woman about the correct use of a diaphragm?

A. It is effective for up to 48 hours if positioned properly: A diaphragm should not be left in place for 48 hours; leaving it longer than 24 hours increases risk of infection and toxic shock syndrome. B. Use of a spermicidal cream or jelly is not recommended: A spermicidal agent is recommended with diaphragm use to increase effectiveness; omission lowers contraceptive efficacy. C. Leave in place for at least 6 hours after intercourse: The diaphragm should remain in place for a minimum of 6 hours after intercourse to ensure sperm are immobilized, but it should not be left longer than the recommended maximum (usually 24 hours). D. Remove immediately after intercourse for douching: Removing the diaphragm immediately is not advised; douching after intercourse is discouraged because it can push sperm upward and reduce contraceptive effectiveness.