Infertility Flashcards
When does the American Society of Reproductive Medicine say it is appropriate to treat infertility?
- failure to achieve successful pregnancy after 12 months or more if appropriate, timed intercourse or therapeutic donor insemination
- If over the age of 35, early evaluation and treatment may be considered after 6 months
What are primary causes of infertility?
- primary ovarian insufficiency (premature ovarian failure)
- PCOS
- obesity
- weight changes
- excessive exercise
- thyroid dysfunction
- hyperprolactinemia
What day of the cycle is menses?
day 0
What day of the cycle is ovulation?
day 14
What causes ovulation?
LH surge
What is true for basal temperature family planning to be effective?
must be laying in bed without a blanket or anything increasing temperature
What is an ectopic pregnancy?
implantation in the fallopian tube
How long is the egg viable for fertilization after ovulation?
24h
How long is sperm viable for fertilization?
5-7 days
What should be used to monitor the exact time of ovulation?
ovulation testing kits
What medications increase prolactin levels?
- chlorpromazine
- cimetidine
- estrogen
- haloperidol
- medroxyprogesterone acetate
- methyldopa
- TCA
- Varapamil
What medications decrease sperm activity?
- cocaine
- marijuana
- anabolic steroids
- alcohol (excess)
- allopurinol
- CCBs
- caffeine
- colchicine
- nitrofurantoin
- Spironolactine
- tetracycline
Who should be tested first to determine infertility?
male
What kind of testing is done for women to determine infertility?
- thyroid function tests
- LH detection
- serum progesterone
- prolactin
- FSH
- estradiol
What hormone is produced by granulosa cells of early follicles, is gonadotropin independent, and remains constant between cycles?
serum antimullerian horomone
What is nonpharm treatment for infertility?
- avoid contributing medications (nicotine, alcohol, illicit drugs)
- BMI< 27 (weight reduction of 5% ay restore spontaneous ovulation)
- avoid excess exercise and dieting
- multivitamin with folic acid
How is hyperprolactinemia treated?
- bromocriptine
- cabergoline
What is first line for infertility?
Clomiphene citrate (CLOMID)
What is the MOA of Clomid?
estrogen antagonist –> inhibits negative feedback –> increases release of gonadotropins (FSH) from pituitary
How is Clomid dosed?
PO on days 5-9 of the cycle; increase by 25-50 mg/day till ovulation occurs
How long can a patient be on Clomid? Why?
- consider another therapy after 6 cycles with no pregnancy
- > 12 months use increases risk of ovarian cancer