Exam 1 Flashcards
(41 cards)
What is included in the workup of abnormal uterine bleeding (AUB)?
- R/O pregnancy with urine HCG
- CBC for H&H and platelet count to r/o anemia
- TSH and prolactin if amenorrhea or anovulatory bleeding
- PT, PTT, fibrinogen if coagulopathy suspected
When is endometrial biopsy indicated in the workup of AUB?
- premenopausal women: prolonged irregular bleeding, unexplained post-coital bleeding, intermenstrual bleeding; endometrial cells or glandular on pap smear, anovulatory abnormal bleeding
- Postmenopausal: abnormal uterine bleeding, hormone therapy with abnormal bleeding; unscheduled bleeding that lasts more than 3 months after starting COC; endometrial stripe greater than 5mm on ultrasound
When is pelvic US indicated in the workup of AUB?
anovulatory bleeding w/o response to tx, anatomic defect suspected
PALM-COEIN classification: what is included in the PALM portion of this classification?
Structural abnormalities
- Polyps: endocervical or endometrial
- Adenomyosis
- Leiomyoma
- Malignancy & hyperplasia
PALM-COEIN classification: what is included in the COEIN portion of this classification?
Hormonal abnormalities
- Coagulopathy
- Ovulatory dysfunction
- Endometrial
- Iatrogenic
- Not yet classified
What are some abnormal causes of amenorrhea?
- PCOS
- anatomic factors
- abnormalities related to the HPO axis
- ovarian failure
- CNS disorders
What is primary vs. secondary amenorrhea?
- Primary
- no menses by 14 in absence of secondary sexual characteristics
- No menses by 16 regardless of presence of secondary sexual characteristics
- Secondary: no menses in previously normal menstruating female for an interval of at least 3 cycles or none if they are irregular in 6 months
What are the categories of causes of amenorrhea?
- dx of the genital outflow tract
- disorders of the ovary
- disorders of the anterior pituitary
- disorders of the hypothalamus or CNS
What is the most common cause of pituitary associated abnormal bleeding?
hyperprolactinemia
What is included in the workup for amenorrhea?
- TSH and prolactin
- Progesterone (Provera) challenge
What is the effectiveness of the nonhormonal forms of contraception?
- withdrawal: 20-60% effective
- lactational amenorrhea: 98-99.5% effective
- diaphragm: 88%
- cervical cap: 77%, 86% for nulliparous women
- male condoms: 85%
- copper IUD: 99%
What are the timeframes for placement for the diaphragm and cervical cap? - think how far in advance can it be placed and how long after intercourse should it remain in place?
- Diaphragm: can be inserted up to 6 hours before intercourse and should remain in place for at least 6 hours following intercourse but no longer than 24 hours
- Cap: Can be inserted 48 hours prior and stay in place for at least 6 hours after
What is the MOA of the copper IUD?
Copper components fx tubal and endometrial fluids and incapacitates sperm; toxic fx on ovum; creates localized reaction in endometrial tissue which makes it unsuitable for implantation
What are the side fx of the copper IUD?
menstrual changes (heavier, longer menses/bleeding) , increased dysmenorrhea, increased blood loss, copper allx
How do COCs prevent pregnancy? How effective are they with typical use?
- Inhibits LH to suppress ovulation
- Progesterone only works but estrogen used to decrease abnormal bleeding fx of progesterone only methods - 91% effective
What are contraindications to COC use? (11)
- pregnancy
- estrogen dependent cancers
- undiagnosed dysfunctional uterine bleeding
- clotting disorders hx of stroke/MI/CAD, DVT, PE
- major surgery
- severe hepatic disease
- uncontrolled HTN
- over 35 yo and smoking
- active gallbladder disease
- migraine with aura
- under 21 days postpartum
What are special considerations for the ortho-evra patch and the NuvaRing?
- Patch: avoid in women >90kg (198lbs); can reapply if off for less than 24 hours, change if out for more than 24 hours
- Ring: no decrease in fx if out for less than 3 hours
What are the major side fx that should be reported with COCs?
- A: abdominal pain: hepatic mass or tenderness
- C: chest pain: cough or SOB
- H: headache
- E: eye problems: visual changes, speech changes
- S: severe leg pain
What are some non-contraceptive benefits of COCs?
- Reduce risk of endometrial cancer
- Reduce ovarian cancer risk
- Reduce colon cancer risk
- Reduce anemia and blood loss
- May reduce PMS/PMDD
- Reduce PID
- Fewer ectopic pregnancies
- Reduce benign breast conditions/fibrocystic breast
- May reduce ovarian cysts
- Treat endometriosis
- Less dysmenorrhea
- Some improve acne and hirsutism (ortho tri-cyclen, yaz, estrostep FDA approved)
- Improved bone mineral density
What are some drugs that may decrease the effectiveness of COCs?
What allergy is most common in COCs?
Drugs
- Rifampin
- Anticonvulsants (depo is a better option)
- HIV meds
- TB meds
- Griseofulvin
- St. John’s wort
Allergy: most common is to lactose component
What are the instructions for 1 vs. 2+ missed pills with COCs?
- 1: take late or missed pill as soon as possible and take remaining pill one time; no backup method needed
- 2+: take most recent missed pill as soon as possible and continue remaining pills at the usual time, discard other missed pills; use back up BC for 7 days
What population are POPs (progestin only pills) good for?
good for those with a CI to estrogen; niche for breastfeeding moms
What are some benefits of POPs?
- May reduce painful crises in pts with sickle cell disease
- May reduce pelvic pain w/ endometriosis
- May reduce frequency and severity of migraines
- May reduce amt of menstrual blood loss
- Preferred to COCs if 21 days or less postpartum and for lactating women
How is Depo-Provera administered and what are important considerations?
- Administration: Every 12 weeks, r/o pregnancy if more than 13 weeks
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Considerations
- Potent inhibitor of HPO axis: return to fertility may be delayed than other methods (15-18 mo)
- BBW: reduction in bone density if use longer than 2 years