Infertility: lasku Flashcards
(37 cards)
what is estrogen fraction used to evaluate
sexual maturity, menstrual problems, fertility, fetal-placental health, estronge-producing tumors in females
when does E2 peak?
peaks during the ovulatory phase
estrodil E3
produced in placenta
major in pregnancy
estrone E1
from androstenedione peripheral tissues
drugs that elevate and decrease estrogen
increase: steroids, ampicillin, estrogen containing drugs
decrease: clomiphene (used to treat infertility)
Clinical sig of increased estrogen levels
feminization syndrome, precocious puberty
ovarian, testicular adrenal tumors
normal preg
hepatic cirrhosis
hyperthyroidism
clinical sig od decreased estrogen levels
failing pregnanxy
turners
hypopituitarism
primary and secondary hypogonadism
menopause: low estrogen/progesterone: high LH/FSH
anorexia nervosa
what is progesterone assay used for
infertility
problems maintaining the pregnancy
when should progesterone assay be done
check day 21 bc its at its highest levels
where is progesterone secreated
secreted by corpus luteum after ovulation
initiates the secretory phase of endometrium
clinical sign of increased progesterone levels
ovulation, pregnancy, luteal cysts of ovary, adrenocortical hyperplasia, choriocarcinoma (releases HCG which stimulate the corpus luteum to continue to make progesterone to support preg)
clinical sig of decreased progesterone levels
amenorrhea, ovarian hypofunction, preeclampsia, eclampsia, threatened abortion, placental failure, fetal death, ovarian neoplasm
complications during pregnancy of low progesterone:
preclampsia: high BP and protein in urine
eclampsia: develops seizures
what is serum testosterone used to evaluate
ambiguous sex characteristics
precocious puberty
virilizing syndromes in females
infertility in males
where is testosterone secreted?
leydig cells of the testicles
where are DHEA and androstenedione produced
in the adrenals
what does LH stimulate in males
FSH?
LH: stimulates the production of testosterone
FSH: stimulates spermatogenesis
clinical sig of increased testosterone levels males vs females
males: sexual precocity, congenital adrenal hyperplasia, leydig cell tumors, hyperthyroidism, adrenocortical tumor
females: pcos, congenital adrenal hyperplasia, trophoblastic tumor (during pregnancy)
what is LH/FSH assay used to evaluate
infertility, menopause, gonadal failure
interfering factors in LH/FSH assay
drugs that increase: cimetidine, digitalis, levodopa, clomiphene
drugs that decrease: estrogen, progesterone, testosterone, steroids