OB Flashcards
Positive signs of pregnancy
- fetal skeleton on x-ray
- presence of fetus on ultrasound
- auscultation of fetal heart (doppler)
- examiner palpates fetal movement (outline)
Naegele’s Rule
1st day of last menstrual period + 7 days - 3 months + 1 year = EDD
What month of pregnancy is viable to give birth to?
Week 25 -28
What months of pregnancy are lungs developed?
Week 33 - 36
Nonstress test
What it is used for: assesses fetal well-being and oxygenation of the placenta
- increase in fetal hr with movement = acceleration = good
- decrease in fetal hr with movement = deceleration = bad
Results:
- reactive: at least two accelerations of 15 beats per minutes for 15 seconds in 20 minute period
- non-reactive: there are not at least two accelerations, further testing is required if result is non-reactive
Contraction Stress Test
Performed when the non-stress test is non-reactive
- oxytocin is administered to induce contractions and the baby is monitored for evaluate their response to contractions (whether or not baby will tolerate labor)
Results:
- negative: normal, the baby did not have decelerations in response to contractions
- positive: bad, the baby had decelerations indicating distress in response to contractions
GTPAL
G (gravidity), number of pregnancies including current but twins only count as one
T (term), number of pregnancies carried to term (37 wks) but twins only count as once
P (preterm), number of preterms births between 20 and 36 wks) but twins only count as one
A (abortions), number pregnancies ending in abortion prior to 19 wks
L (living children), current number of children alive, twins will count twice
Preeclampsia (Proteinuria, Rising BP, Edema)
Blood pressure is >140/90
protein in the urine
HELLP Syndrome
hemolysis, elevated liver enzymes, and low platelet count
Ectopic Pregnancy
An egg is fertilized, but implants outside of the uterine cavity
S&Sx: dizziness or fainting, nausea and vomiting, abdominal or pelvic pain, loss of appetite
Methotrexate given to abort the fetus + Rh immune globulin
Placenta Previa
PAINLESS bright red bleeding
- Do not perform a vaginal exam if you suspect a placenta previa
- Monitor blood loss
- Bed rest
- Monitor Baby
- Cesarean section indicated
Abruptio Placentae
PAINFUL bleeding
- S&Sx: dark red bleeding, intense abdominal pain, board like abdomen
- Monitor for fetal distress
- Monitor maternal bleeding
- Keep the BP up with IVF and/or blood products
- C section indicated
PostPartum Hemorrhage
- fundal massage
- meds: oxytocin, methylergonovine, blood products