Final answer:
The statement that an intrauterine device (IUD) has an effectiveness rate of 95% is true. There are two types of IUDs: copper IUDs and hormonal IUDs. Both types have a failure rate of less than one percent with perfect and typical use.
Step-by-step explanation:
The statement that an intrauterine device (IUD) has an effectiveness rate of 95% is true.
An IUD is a T-shaped or coiled plastic structure that is inserted into the uterus via the vagina and cervix. It can be left in place for months or even years. There are two types of IUDs: copper IUDs and hormonal IUDs.
Copper IUDs prevent pregnancy by interfering with the movement of sperm and may also prevent implantation. They are highly effective with a failure rate of less than one percent, whether used perfectly or with typical use. Hormonal IUDs, like the brand name Mirena, release progestin into the uterus to prevent ovulation and thicken cervical mucus, making it difficult for sperm to reach the egg. They also affect the ability of a fertilized egg to implant in the uterus. Hormonal IUDs also have an effectiveness rate of less than one percent with perfect and typical use.
The claim that an intrauterine device (IUD) has a 95% effectiveness rate is false, as both hormonal and copper IUDs have failure rates of less than one percent, making them highly effective as a form of reversible contraception.