Module 3B Gynecology Flashcards
what are the two mechanisms of action for contraceptives?
1.) inhibiting the development of the ova
or
2.) blocking the meeting of ova and sperm.
What contraceptives work by “inhibiting the development and release of the egg”?
Oral contraceptive pills (OCPs), long-acting progesterone injection, contraceptive patch, contraceptive ring
What contraceptives work by “imposing a mechanical chemical, or temporal barrier between the sperm and egg”?
Condom, diaphragm, spermicide, intrauterine contraception, and fertility awareness
Describe what the “Typical use failure rate” is
the failure rate seen when the method is actually used by patients, that is, factoring in the mistakes in usuage everyone will make from time to time and actual noncompliance
Describe what the “Method or perfect use failure rate” is
The failure rate inherent in the method if the patient uses it correctly 100% of the time
what is the method of contraception causes the most unintended pregnancies?
Withdrawal method
what are the two most effective contraceptive method?
1 is an Implantable contraceptive rod (0.05 unintended pregnancy)
#2 Progesterone IUD (0.2 unintended pregnancy)
what are three examples of long-acting reversible contraception?
IUD (copper, levonorgestrel)
Implantable
Injectable
what method of contraception can last up to 10 years?
Copper IUD
An IUD with progesterone can last up to how many years?
3-5 years
What method of contraception can result in an abnormal pap test?
Cervical cap with spermicide
what is the size of the implantable rod?
what hormone does it contain?
4cm by 2mm rod
It contains a progestin (Etonogestrel)
what is the main side effect of nexplanon?
It is irregular, unpredictable vaginal bleeding that can continue even after several months of use
why was there a disinterest in IUDs in the past?
Because the risk associated with pelvic inflammatory disease and infertility
when is IUD insertion best accomplished? and why?
when the patient is menstruating
this time is beneficial because the patient is not pregnant and her cervix is slightly open
Can breastfeeding women get an IUD?
yes, they also demonstrate a lower incidence of post insertional discomfort and bleeding
What does IUD insertion include?
Sterile procedure, vaginal prep with povidone-iodine solution prior to insertion, bimanual examination before insertion to determine likely direction of insertion into the endometrial cavity, loading of the iud into the inserter then careful placement to the fundal margin of the endometrial cavity
IUD expulsion rate is greatest when?
It is greatest in the first few months of use
What are symptoms of IUD explusion?
cramping, vaginal discharge, or bleeding though it can be asymptomatic, sometimes the lengthening of the IUD string or the partner feeling the device during intercourse is a sign
How quick can an IUD be placed postpartum?
After 10 minutes of delivering the placenta or intraoperative during a cesarean before the closure of the hysterotomy incision.
**expulsion rate is higher
what is the mechanism of action of a hormonal IUD?
Prevents the sperm and egg from meeting by thickening the cervical mucus. This decreases the number of sperm that enter the uterine cavity, the uterine lining thins
What is the mechanism of action for the copper IUD?
The copper ions act as a spermicide which inhibits sperm motility
what are side effects of LNG-IUD?
decrease in menstrual blood loss (up to 50%) and severity of dysmenorrhea
**serum progesterone levels are not affected
what are side effects of the Cu-IUD?
associated with heavier periods and dysmenorrhea that often result in discontinuation