Female Reproduction and Contraception Flashcards
what part of the vagina allows for expansion during childbirth
the transverse, tubular folds with rugae
what is the acidity of the vagina
pH of 4-5
what are the 3 layers of the uterine wall
endometrium, myometrium, perimetrium
puberty is defined as
transitional stage from childhood to sexual maturity
what age is considered puberty
between 8-11 years
what is menarche
a woman’s first menstruation, usually around 12
what is menopause
the end of woman’s reproductive phase, occurs around age 50-55
what is perimenopause
begins in late 40s, with irregular periods, estrogen production declines
what is menstruation
periodic uterine bleeding that begins 14 days after ovulation if pregnancy does not occur
a marked increase in this hormone triggers puberty
estrogen
what can cause things to get stuck in fallopian tubes
gonorrhea, chlamydia, scar tissue causing lumen to get smaller
if pregnancy develops in the fallopian tubes it is called what
an ectopic pregnancy
day 1 of a woman’s menstrual cycle is what
the first of menstrual bleeding
approx. day 14 of woman’s menstrual cycle is what
ovulation
what constitutes ovulation
dominant follicle is released into the fallopian tube to prepare for fertilization
how long does an ova live without being fertilized
24 hours
the leftover pieces of the dominant follicle become what
the corpus luteum
what is the role of the corpus luteum
it releases large amounts of progesterone to thicken the endometrial lining of the uterus to prepare for implantation of an embryo
what triggers menstrual bleeding to occur
if after 14 days the uterus is not implanted, the release of progesterone and estrogen significantly drop resulting in the shedding of the endometrium
where does fertilization occur
the ampulla of the fallopian tubes
after fertilization what happens to the fertilized ovum
it will travel down to the uterus over course of 3-4 days
when does implantation occur
6-10 days after conception
why does ovulation cease during pregnancy
due to high levels of estrogen and progesterone production
where do 95% of ectopic pregnancies occur
in the ampulla of the fallopian tubes
what is the leading cause of 1st trimester miscarriage
ectopic pregnancy
what are some symptoms of ectopic pregnancy
- missed/late period
- dark red/brown vaginal bleeding
- pain and tenderness, escalating from dull to colicky
how is an ectopic pregnancy diagnosed
high index of suspicion, pregnancy test, transvaginal ultrasound
what is the main concern of an ectopic pregnancy
tubal rupture and shock
surgical treatment for ectopic pregnancy
surgical removal of part of tube or laparoscopic removal
medical treatment for ectopic pregnancy
methotrexate
how does methotrexate treat ectopic pregnancy
antimetabolite and folic acid antagonist destroys rapidly dividing cells
when treating ectopic pregnancy with methotrexate what is important nursing care
- monitor BP, H & H, pain, bleeding, psych issues, unexpected pregnancy
what is the impact of an ectopic pregnancy
- leading cause of infertility
- recurrant ectopic pregnancy
what is the recurrent ectopic pregnancy rate after surgery
10-25%
what is the recurrent ectopic pregnancy rate after methotrexate treatment
10-12%
important safe handling for methotrexate
pregnant women should not handle
pt teaching with methotrexate
no alcohol, or folic acid, no sun exposure
what hormone is secreted when pregnant that is used to determine if pregnant
human chorionic gonadotropin (HCG)
what is the role of HCG (human chorionic gonadotropin)
stimulate the corpus luteum to continue to secrete estrogen and progesterone to maintain pregnancy until placenta is functioning
what 4 hormones are important for pregnancy
- estrogen
- progesterone
- human placental lactogen
- relaxin
what is the important of progesterone during pregnancy
most important because it maintains the endometrium and relaxes uterine muscles preventing abortion
what does human placental lactogen provide
it increases the availability of glucose for the fetus
what does relaxin do
inhibits uterine activity and softens connective tissue and relaxes pelvic joints allow baby to fit through
what can compromise the placenta
malnutrition, HTN, drugs, smoking
what is the purpose of the placenta
oxygenation and sustaining fetus
where does the placenta form
the site of embryo implantation
when does maternal-placental circulation begin
day 17 when the baby’s heart starts beating
when is the placenta fully formed
by week 12
how big is the placenta
half the size of the uterus
what 2 membranes make up the placenta
the chorion and amnion