GU midterm Flashcards
(134 cards)
Phases of menstrual cycle=
Phases:
day 1: menses→follicular→
day 14: ovulation→luteal to day 30
Menstrual Cycle Hormonal Sequence of Events=
Sequence of events:
hypothalamus secretes [GnRH] → stimulates anterior pituitary to secrete…
[LH/FSH]→ causes ovarian follicles to mature, secreting…
[estrogen/progesterone]→ ovulation→ if no fertilization→ drop in…
[progesterone]→ menses
Name the four primary hormones of the menstrual cycle:
[GnRH]
[LH/FSH]
[estrogen/progesterone]
[progesterone]
signs of estrogen excess:
dysmenorrhea; nausea; edema; enlarged uterus, uterine fibroids; fibrocystic breast changes; menorrhagia
signs of estrogen deficiency:
scant menses; mid cycle spotting
signs of progesterone excess:
edema; bloating; headache; depression; weight gain; fatigue; HTN; varicose veins
signs of progesterone deficiency:
symptoms similar to those with anovulatory cycles, endometriosis, adenomyosis, endometrial hyperplasia; prolonged menses; heavy menses; severe cramps; luteal spotting; BTB
normal menstrual cycle:
21-35 day cycles
normal age of menarche:
in US is 12-13yo
Amenorrhea=
absence or abnormal cessation of the menses for more than 3 months
Oligomenorrhea=
scanty menstruation; menstrual periods occur at intervals of greater than 35 days, with only 4-9 periods in a year
Polymenorrhea=
occurrence of menstrual cycles of greater than usual frequency
Menorrhagia (hypermenorrhea)-
excessively prolonged or profuse menses
Metrorrhagia-
any irregular, acyclic bleeding from the uterus between periods
Menometrorrhagia-
irregular or excessive bleeding during menstruation and between menstrual periods
Dysmenorrhea-
painful menses
Mittelschmertz-
one-sided lower-abdominal pain that occurs in women at or around the time of ovulation
Primary Amenorrhea=
-Primary: 0.3% prevalence; no secondary sex characteristics by age 14; no menses by age 16
Secondary Amenorrhea=
Secondary: 1-3% prevalence; no menses per 3 cycles or 6 months, whichever sooner, in a woman w/ previous menses
Primary Amenorrhea Causes=
CNS hypothalamic pituitary disorder; membranous blockage of vagina (hymen); drastic weight loss/ malnutrition/ eating disorder; hypoglycemia; extreme obesity; thyroid disease; anemia; congenital abnormalities of genital system
Secondary Amenorrhea 4 most common causes=
- normogonadotropic anovulation
- hypogonadotropic hypogonadism
- prolactinoma
- hypergonadotropic hypogonadism
hypergonadotropic hypogonadism:
Causes Secondary Amenorrhea
high LH/FSH, but unresponsive ovaries; premature ovarian failure
prolactinoma:
Causes Secondary Amenorrhea
high prolactin; medications, pituitary tumor, hypothyroidism
hypogonadotropic hypogonadism:
Causes Secondary Amenorrhea
low LH/FSH so lack of stimulation of ovary; psychological and physical stress