A nurse is explaining the use of cycle beads to a client who wants to use the standard days method of contraception.

The nurse should instruct the client to do which of the following actions?

The correct answer is choice B.Spermicide alone is 72% effective at preventing pregnancy when used correctly and consistently.

This means that out of 100 people who use spermicide as their only birth control method, about 28 will become pregnant in a year.

Choice A is wrong because spermicide alone is not 90% effective at preventing pregnancy.It is much less effective than other methods of birth control.

Choice C is wrong because spermicide alone is not 100% effective at preventing pregnancy.No method of birth control is 100% effective, except for abstinence.

Choice D is wrong because spermicide alone is not 50% effective at preventing pregnancy.It is slightly more effective than that, but still not very reliable.

Spermicide works by damaging the sperm and blocking the entrance to the cervix.

It needs to be inserted into the vagina before sex and reapplied every time.It does not protect against sexually transmitted infections (STIs) and may increase the risk of some STIs by irritating the vaginal lining.Spermicide is more effective when combined with another method of birth control, such as condoms or diaphragms.

The correct answer is choice A. The client should move a rubber ring over one bead every day starting from the first day of menstruation.This is how theStandard Days Methodof contraception works, using a special string of beads calledCycleBeadsto track the days of the menstrual cycle and identify the fertile window.

Choice B is wrong because moving the ring from the last day of menstruation would not match the cycle days indicated by the beads.

Choice C is wrong because moving the ring over two beads every day would not accurately track the cycle days, and starting from the first day of ovulation would be too late to avoid pregnancy.

Choice D is wrong because moving the ring over two beads every day would not accurately track the cycle days, and starting from the last day of ovulation would not account for the fertile window before ovulation.

The Standard Days Method can only be used by women who have regular cycles between 26 and 32 days long.They should avoid unprotected sex or use another method of birth control on days 8 to 19 of their cycle.