OB/GYN UWorld Flashcards
which contraceptive devices are contraindications in pts with breast cancer
hormone-containing methods of contraception should be avoided in pts with breast cancer,
as estrogen and progesterone may have a proliferative effect on breast tissue
esp concern hormone receptor-postivie breast cancer
what is the most effective non-hormonal contraceptive
copper IUD
what are absolute contraindications for combined hormonal contraceptives
migraine with aura >=15 cigarettes/day PLUS age >35 HTN >160/100 heart disease DM with end-organ damage h/o thromboembolic disease antiphospholipid-antibody syndrome h/o stroke breast cancer cirrhosis and liver cancer major surgery with prolonged immobilization use <3 weeks postpartum
what are you required to do if a pt is HIV positive
report positive HIV tests to the local health department
the local health department usually contacts the pt’s contacts (anonymously)
what is dx in pt with “3 D’s”:
dysmenorrhea, dyspareunia, and dyschezia
endometriosis
what is empiric tx for endometriosis
NSAIDs and/or combined oral contraceptives
OCPs are thought to reduce pain by ovulation suppression, which may result in atrophy of endometrial tissue
laparoscopy if treatment fails, adnexal mass, or acute symptoms
what is dx in female >20 weeks gestation with new-onset BP >140/90 + proteinuria and/or end-organ damage
preeclampsia
what are the 6 severe features of preeclampsia
systolic BP >160 or diastolic BP >110
(2x at least 4hrs apart)
thrombocytopenia
high Creatinine
high transaminases
pulmonary edema
visual or cerebral symptoms
how do you manage preeclampsia, depending on whether severe features are present
Magnesium sulfate (seizure prophylaxis) Antihypertensives
w/o severe features: delivery at >=37 weeks
w/ severe features: delivery at >= 34 weeks
what are 6 risk factors for preeclampsia
multiple gestation nulliparity preexisting DM advanced maternal age CKD prior preeclampsia
what are 3 treatment options for preeclampsia in a hypertensive crisis
IV labetalol (beta blocker w/ alpha-blocking activity) --avoid in bradycardia
IV hydralazine (vasodilator)
oral Nifedipine (CCB) --avoid with emesis
which drug prevents/treats eclamptic seizures
IV or IM Magnesium sulfate
what are 2 indications for oxytocin use
induction or augmentation of labor
prevention and management of postpartum hemorrhage
what are 3 adverse effects in excessive oxytocin administration
hyponatremia (water intoxication)
–can cause generalized tonic-clonic seizure
hypotension
tachysystole
what has a similar structure to oxytocin that explains some of its action
ADH
prolonged doses of oxytocin can cause water retention and hyponatremia
how do you treat acute hyponatremia / water intoxication
hypertonic saline (3% saline) to normalize the Na levels
what are nl Mg levels, how does magnesium toxicity present and what serum level does it become toxic
normal serum levels: 1.5-2
therapeutic levels for pregnancy seizure prevention: 5-8
toxic Mg: >8
toxicity presents: hyporeflexia lethargy headache respiratory failure ultimately cardiac arrest (no seizures)
run through the 5 portions of the biophysical profile during pregnancy; and their normal findings
- Nonstress test:
- -reactive fetal heart rate monitoring - Amniotic fluid volume
- -single fluid pocket >2x1 cm or amniotic fluid index >5 - Fetal movements
- - >= 3 general body movements - Fetal Tone
- - >= 1 episode of flexion/extension of fetal limbs or spine - Fetal breathing movements
- - >= 1 breathing episode for >= 30 seconds
0 - 2 for each; max score of 10
8-10 is normal
6 is equivocal
<= 4 is an indication for delivery to prevent intrauterine fetal demise (fetal hypoxia 2/2 placental insufficiency)
what are late and post-term pregnancies at risk for
41-42 weeks’ gestation are at risk for
uteroplacental insufficiency
how long is the fetal sleep cycle, and how is it disrupted
fetal sleep cycle lasts for 20 minutes
usually disrupted by vibroacoustic stimulation
what is dx in pregnant F who presents with fetal tachycardia (>160), maternal fever, and uterine tenderness
intraamniotic infection (chorioamnionitis)
what is dx in female with unilateral bloody nipple discharge w/o associated mass or Lymphadenopathy
intraductal papilloma
what is dx in female with well demarcated, round, firm, and mobile breast mass
fibroadenoma
what is dx in female with nipple discharge and mass / Lymphadenopathy
infiltrating ductal carcinoma