A.) Three weeks
B.) Three months
C.) One year
D.) None of the above
Answer and Rationale: A. Usually, the CHC vaginal ring remains in place for three weeks and then is removed to allow for withdrawal bleeding. Users can select to use the ring for continuous use to avoid menstruation; however, clinical data on this is absent.
A.) Four hours
B.) 72 hours
C.) 96 hours
D.) 48 hours
Answer and Rationale: D. Backup contraception is unnecessary if a vaginal ring is absent for less than 48 hours.