OB/Gyn Flashcards
What are absolute contraindications to oral contraceptive pills, there are four
Pregnancy.
Liver disease
Breast cancer
Breast-feeding at less than six weeks
How many visits to the doctor while pregnant are considered adequate prenatal care?
When is a pregnant woman screened for group B strep
Eight visits
Between 36 to 37 6/7 weeks gestation 
If a mother requires in partum, antibiotic prophylaxis for GBS, which three antibiotics can be given? At least how many hours prior to delivery?
Penicillin, ampicillin, cefazolin.
At least four hours prior to delivery
What are three scenarios in which you need to give intrapartum antibiotic prophylaxis for GBS?
A previous pregnancy where the infant had invasive GBS.
Positive GBS in the urine at any time during this pregnancy regardless of treatment.
Positive reactive vaginal GBS screening culture 36 to 37 6/7 weeks in this pregnancy
If the mother’s GBS status is unknown, which for scenarios require antibiotic prophylaxis
Less than 37 week gestation
Rupture of membranes more than 18 hours
Intrapartum fever of greater than or equal to 100.4
Positive intrapartum NAAT testing
Which two scenarios other than just a normal pregnancy is intrapartum antibiotic prophylaxis not indicated?
GBS positivity in a previous pregnancy line C-section done with intact membranes
Which four tests should be done in a newborn with concerning signs for GBS infection?
House long should antibiotics be continued if cultures are negative?
CBC, blood culture, chest x-ray if there are respiratory symptoms and/or lumbar puncture with CSF culture at high risk.
Stop antibiotics if cultures are negative for 48 hours
Which two antibiotics are good impaired treatments for GBS if it is a suspected, but not confirm?
Which antibiotic should be added on if meningitis is suspected?
If GPS is confirmed which antibiotic should be used.
Ampicillin and gentamycin
Extended spectrum cephalosporin like cefotaxime, ceftazidime,cefepime
Penicillin G
GBS infection in a newborn is considered early onset at what time.? Late onset at what time.?
Early is from birth to day of life six
Late is after day of life six
In late onset, GBS disease, bacteremia, UTI are treated with which antibiotics?
How was meningitis treated?
How was cellulitis/adenitis treated?
 ampicillin or vancomycin plus gentamycin or cefotaxime
Ampicillin or vancomycin plus gentamycin plus cefotaxime
Nafcillin or vancomycin plus gentamycin or cefotaxime
Is gestational diabetes associated with gestational abnormalities?
When is AFP screening offered?
If it is elevated, what is usually cause?
No
At 16 weeks gestation.
Neural tube defect
If AFP is elevated which test should be ordered?
If this test is negative, which test should be ordered next?
In addition to neural tube defects, elevated AFP is also seen in which other situations.
Fetal ultrasound.
Amniocentesis to get amniotic AFP levels.
Gastroschisis, other abdominal wall defects, fetal demise, renal, anomalies, wrong dates, wrong number of kids
Low serum AFP is associated with which syndrome?
What does chorionic villous sampling test?
Around what time of gestation is it offered?
Down syndrome
Test, fetal karyotype, think of it as chromosome villous sampling.
12 weeks
Neural tube defects are likely due to deficiency and what vitamin question?
During what time of the pregnancy is amniocentesis offered? What does it look for?
What is the only indication for amniocentesis in the third trimester?
Folic acid
15–18 weeks, looks for identifiable, genetic issues.
To assess fetal lung maturity
In the triple screen/quadruple screen in the second trimester, what pattern of AFP, unconjugated estriol,hCG, and inhibit A seen in down syndrome?
Low AFP, low estriol, high hCG, high inhibin A
And pregnancy, what does a non-stress test measure and what is it used to measure?
For what complaint of the mother would you get a non-stress test?
What is a good result of this test?
It measures fetal heart rate in response to fetal movement, used to measure integrity of the fetal nervous system.
Mom says her baby is not moving.
Reactive is good
In a non-stress test if it is non-reactive what test should be done?
what test is involved in a biophysical profile?
What does it check, five things
A biophysical profile
An ultrasound breathing, tone, movement, amniotic, fluid, heart rate
In pregnancy, what does a stress test assess?
What is it assessing the fetus for?
The fetal response to contractions.
Assesses the fetus for uteroplacental insufficiency and tolerance of labor 
How much folic acid should a woman of childbearing age consume daily?
If a woman wants to get pregnant again and has had a baby with a neural tube defect in the past, how much should she take?
0.4 mg per day.
4 mg per day starting one month before trying to get pregnant
Which two tests can be used to test fetal lung maturity?
Phosphatidyl glycerol, this is the best.
Lecithin-sphyngomyelin ratio should be greater than two
What does monoamniotic mean?
Diamniotic?
What does monochorionic mean?
Dichorionic?
Which is the only combination that is not possible
One amniotic sack containing both twins
Two amniotic sacks, each housing, one twin.
One placenta supporting both twins.
Two placentas , one for each twin.
The only possible is monoamniotic/dichorionic
In dizygotic twins, what is always the arrangement of amniotic, sac and placenta?
Which pneumonia in a neonate is associated with a staccato cough?
always diamnionic, dichorionic
Chlamydia pneumonia
Conjunctivitis in a neonate less than one month old should raise concern for what?
Describe lymphogranuloma venereum
Chlamydia infection, transmitted vertically
Starts with small, nontender, papules, or shallow ulcers that resolve and then a tender unilateral inguinal lymph node appears that can rupture and possibly drain for months
What is the first line treatment for chlamydia STD infection?
If there is concern for treatment, failure, recurrence, or noncompliance or an allergy to this antibiotic, Which two other antibiotics can be used.
Doxycycline for seven days.
A single dose of azithromycin or levofloxacin for seven days