OB Flashcards
What is the treatment for morning sickness?
Vit B6
Can add Doxylamine
What is hyperemesis gravidarum and how do you treatment?
Intractable vomiting during pregnancy
Tx: IV fluids, electrolyte replacement, Zofran/Promethazine, ginger, steroids
What is characterized by an increase in hCG despite the absence of fetal heart tones?
Gestational Trophoblastic Disease
What is the treatment for gestational trophoblastic disease?
Refer to OB for D&C
What is considered a threatened abortion?
Any bleeding before 20 weeks
What can occur if a fetus is Rh+ and a mother is Rh-, and how does this happen?
Rh Incompatibility
The Rh+ pos fetus’ blood can mix with the Rh- mother’s blood
The mother’s immune system makes antibodies against the antigens of the Rh+ fetus
The antibodies attack the fetal RBCs and cause hemolytic disease of the newborn (HDN)
What is the treatment for Rh incompatibility?
Give RhoGAM to Rh- mother at 28 weeks and after delivery
What is preterm labor and what are the signs/symptoms?
Labor that occurs before 37 weeks
> 6 contractions in 1 hour, maybe premature rupture of membranes and cervical dilation
What is the treatment for preterm labor?
IV hydration
Tocolysis (terbutaline, nifedipine, prostaglandin inhibitors, mag sulfate)
Steroids (2 doses of betamethasone if < 34 weeks)
Fetal fibronectin
What is the treatment if there is premature rupture of membranes?
Ampicillin
Expectant management if > 34 weeks
Steroids & tocolysis if < 34 weeks
When is a mother tested for Group B strep?
35-37 weeks
What is the treatment if a mother tests positive for Group B strep?
IV abx (penicillin) at the beginning & throughout labor
When would you treat empirically for Group B strep?
If mother goes into labor at < 37 weeks
If membranes rupture > 18 hrs before delivery
If mother has a fever during labor
What is the difference between placenta previa and abruptio placenta?
Placenta previa: painless bleeding
Abruptio placenta: painful bleeding
What is vasa previa?
The umbilical cord covers the internal cervical os
What are the different positions a fetus/baby can be in?
Occiput posterior: back of baby’s head is toward mom’s spine
Breech: baby’s bottom is presenting
Transverse lie: baby is sideway
Face presentation: hyperextension of the head w/occiput to the back
Compound & brow presentation: hand or foot (compound) or forehead (brow)
How does shoulder dystocia occur?
The anterior shoulder gets impacted against the symphysis pubis after delivery of the head
How do you treat shoulder dystocia?
McRoberts maneuver
Suprapubic presser
Woods’ screw maneuver
Zavanelli maneuver (push baby back in and do c-section)
What kind of heart decelerations may be seen on a fetal cardiac monitor?
Variable decel: from cord compression, brady <100
Late decel: decrease HR after onset of contraction
Decreased variability: < 3-5 beat change
What HR indicates that there is fetal distress?
> 160 or < 110