General Gyn Flashcards
NIH diagnostic criteria for PCOS
Both required
- hyperandrogenism
- oligomenorrhea/amenorrhea
Rotterdam diagnostic criteria for PCOS
Must have 2 of 3
- Hyperandrogenism
- Oligomenorrhea/amenorrhea
- Polycystic ovaries
Androgen Excess Society diagnostic criteria for PCOS
Hyperandrogonism AND
Oligomenorrhea/amenorrhea OR polycystic ovaries
Lab tests for diagnosing PCOS
Total testosterone and sex-hormone binding globulin ( or bioavailable and free T) TSH Prolactin 17-OHP 2-hr GTT Fasting lipids
Definition of polystic ovaries
Definition of polystic ovaries
12 or more follicles measuring 2-9mm in diameter OR
Increased ovarian volume greater than 10cm3
(If there’s a follicle >10mm, repeat scan at presumed time of ovarian quiescence)
Metabolic syndrome
Elevated blood pressure (>130/85) Increased waist circumference (>35") Elevated fasting glucose levels (>100) Reduced HDL (<50) Elevated triglycerides (>150)
How does insulin resistance relate to hyperandrogenism?
Hyperinsulinemia –> decreased levels of sex hormone binding globulin –> more bioavailable androgens
Women with PCOS are also at risk for:
Metabolic syndrome Insulin resistance (--> T2DM) Nonalcoholic fatty liver disease Obesity related disorders like sleep apnea Cardiovascular disease Endometrial cancer Depression
Who should be screened for nonclassical congenital adrenal hyperplasia?
Adult women with anovulation and hirsutism
In women with PCOS who is not attempting to conceive, what is the best medical maintenance therapy to treat menstrual disorders?
Combined OCPs
Progestin (often accompanied by AUB)
Metformin (decreases circulating insulin)
In women with PCOS who are not attempting to conceive, what is the best medical maintenance therapy to reduce the risks of cardiovascular disease and DM?
Lifestyle modification
Metformin
Statins
Combined OCPs
In women with PCOS who are attempting to conceive, which methods of ovulation induction are effective?
Letrozole (aromatase inhibitor) Clomid Low-dose gonadotropins Ovarian drilling Metformin
Mechanism of action of spironolactone
Aldosterone antagonist
Also binds androgen receptor as antagonist
Flutamide mechanism of action
Androgen-receptor agonist
Finasteride mechanism of action
5-alpha-reductase inhibitor
Teratogen, need reliable contraception
Eflornithine mechanism of action
Inhibits ornithine decarboxylase
Topical
Improves outcome of laser
Can you use vaginal estrogen in patients with recent diagnosis of breast cancer or currently being treated for breast cancer?
Yes, but vaginal tablet or ring impregnated with estradiol would confer a lower systemic absorption than a cream.
Most effective form of emergency contraception
Copper IUD
Second is ulipristal acetate - SPRM
Antibodies in Graves disease
TSH receptor antibodies
can also test for increased radioactive iodine uptake
Mechanism of action of PTU/methimazole
Blocks organification of iodide –> decreases synthesis of thyroid hormon
(PTU also blocks peripheral conversion of T4 to T3)
Common supplement that can mask vitamin B deficiency
Folic acid supplementation (rule out vitamin B12 deficiency before starting supplements)
Definition of late latent syphilis
Asymptomatic, positive serologic test result greater than 12 months after infection
Treatment for primary, secondary, or early latent syphilis
Penicillin G 2.4 million units, IM x1
Treatment for late latent or tertiary syphilis or syphilis of unknown duration
Three doses of penicillin G 2.4 million units at one-week intervals
Tamoxifen mechanism of action
Selective estrogen receptor modulator
Blocks native estrogen effects on breast tissue
Stimulates estrogen receptors in endometrium
How does tamoxifen have a procoagulant effect?
Increases antithrombin III and protein C
not recommended in women with history of VTE
Who has an increased risk of endometrial neoplasia when taking tamoxifen?
Postmenopausal women
What is tamoxifen’s affect on bone?
Lower rates of osteoporosis due to antiosteoclast activity
Maybe premenopausal women have decreased bone mineral density, but no increase in fractures
Indications for laparoscopy in adolescents with pelvic pain
Chronic pain unresponsive to OCPs and NSAIDs Diagnostic dilemma (PID vs appy) Identified pelvic mass Painful irregular vaginal bleeding Progressive dysmenorrhea
Is well-controlled hypertension a contraindication to estrogen containing methods of contraception?
Yes, use progesterone-only
Number needed to treat (NNT)
100 / (exposure with desired outcome) - (no exposure with desired outcome)
Absolute risk reduction
An quantity by which some outcome is reduced
Not a ratio
(exposure with desired outcome) - (no exposure with desired outcome)
Relative risk reduction
Absolute risk reduction / baseline rate of event in question
Relative risk
100 - relative risk reduction
Which lower genital tract anomalies should be transected in the OR?
Imperforate hymen (semiperforate hymen, septums can be done in the office)
Which lifestyle modification decreases blood pressure the most?
Weight loss
In order to be considered eligible for Medicaid EHR program, the proportion of the OBGYN’s private practice patient volume covered by Medicaid must be:
30%
Does Depo decrease bone mineral density?
Yes 5% after 5 years of use
But this is recoverable after Depo is discontinued
What is the single dose regimen treatment for bacterial vaginosis?
Secnidazole 2g PO x1 (oral granules)
First line treatment for cyclic nonfocal mastalgia
Supportive bra and NSAIDs
Danazol
Androgen that suppresses pituitary gonadotropin release
Only FDA approved drug for cyclic mastalgia
(but not first line due to side effects - weight gain, menstrual irregularity, hot flashes, voice deepening, acne, hirsutism)
Postembolization syndrome
30-40% of embolizations, results from tissue ischemia and necrosis leading to an inflammatory reaction
Pain, nausea, fever, elevated WBC
Peaks 1-2 days after procedure and resolves within 8 days
Fractional excretion of sodium < 1
Prerenal etiology of oliguria (decreased renal perfusion)
Ovarian mass with elevated LDH and b-hCG
Dysgerminoma
What should patients do with their basal (long-acting) insulin preoperatively
Decrease dose the night before to prevent hypoglycemia while NPO
Helpful to prevent pregnancy loss in women with recurrent (>3 consecutive) pregnancy loss
Progesterone supplements
Treatment for fibroids in a smoker that wants to delay surgery
Leuprolide acetate
Age when varicella is given
First dose 12-15 months
Second dose 4-6 years
7 and older who do not have evidence of immunity
Treatment for exposure to varicella, still asymptomatic
Vaccination
First line for GERD treatment
PPI
When should DEXA scan be performed
Age 65
Or if FRAX 10yr fracture risk is 9.3% or greater
Treatment of osteoporosis should be initiated when:
T-score of -2.5 or less
FRAX score with 10yr risk of 3% or greater for hip fracture
FRAX score with 10yr risk of 20% or greater for major osteoporotic fracture
Used for the prevention of osteoporotic fractures AND reduction of breast cancer risk
Raloxifene
Omnibus Final Rule
Addresses provisions of HITECH act
Attempt to standardize EHR capabilities across platforms and provide funding for “meaningful use” of EHR
Primary risk of tamoxifen and raloxifene
Thromboembolic events
Why is raloxifene better than tamoxifen for menopausal patients
Tamoxifen has increased risk of VTE, endometrial neoplasia, and cataracts
She had positive blood cultures in the hospital, but she’s on oral antibiotics and feeling much better now, would you repeat the blood cultures?
No
Do you biopsy a thick endometrium in an asymptomatic postmenopausal woman?
No
The first step in creating an office safety program is to
Designate a medical director for safety
Pap screening for HIV+ women
Initiate a year after starting sexual activity, if normal then yearly cytology
Most effective emergency contraception
Copper IUD
then ulipristal - antiprogestin, then oral levonorgestrel
After obturator sling, patient can’t rotate hip outward
Obturator internus injury
Risks for surgical site infections
Abdominal»_space; laparoscopic»_space; vaginal
Length of procedure > 3 hours
Blood transfusion
Next test for “burning” or tender vulvar pain with swab test
Fungal culture
Next step after insufficient sample on EMB (for single episode PMB)
TVUS for endometrial stripe