Ob/Gyn Flashcards
Why do pregnant women get Anemia?
Due to the dilution effect: RBC rises 30%, but body volume rises 50%
What is Meconium?
Green baby poop (first poop)
What are Identical Twins?
Eggs split into perfect halves “Monochorionic”
What are Fraternal Twins?
Multiple eggs fertilized by different sperm
What is Ovarian Hyperstimulation syndrome?
Weight gain and enlarged ovaries after clomiphene use for infertility
Who Makes the Trophoblast?
Baby
Who makes the Cytotrophoblast?
Mom production of GnRH, CRH, TRH, and Inhibin
Who makes the Syncytiotrophoblast?
Mom and baby production of HCG and HPL
When does Implantation occur?
1 week after fertilization
When is Beta HCG found in Urine?
2 weeks after fertilization
When is B-HCG found in Blood?
8-10 days after fertilization
What makes Progesterone in >10 weeks gestation?
Placenta
What is the function of B-HCG?
Maintains Corpus Luteum, sensitizes TSH receptors to make body hyperthyroid (to raise BMR)
What makes B-HCG?
Placenta (synctiotrophoblast)
How fast should B-HCG rise?
Shoulde double every 2 days until 10 weeks, stops when placenta is fully formed
What is the function of AFP?
Regulates intravascular volume
Made in the liver of fetus
What is the function of HPL?
Blocks insulin receptors so the sugar stays high, (baby is stocking up - hibernating)
What is the function of Inhibin?
Inhibits FSH so there is no menstruation
What is the function of Cortisol in Pregnancy?
Decreases immune rejection of the baby out of mom and for lung maturation
What is the function Oxytocin?
Milk and baby ejection
What is the thyroid hormone levels during Pregnancy?
Increased TBG - leads to increased total T4 (Bound and free)
When can you first detect fetal heart tones?
Week 20
When can you tell the sex of the baby by US?
Week 16
What does an AFI <5 indicate?
Oligohydramnios (Cord compression)
What does an AFI >20 indicate?
Polyhydramnios (DM)
How fast should fundal height change?
Uterus grows 1 cm/week
What is the risk of Chorionic Villus Sampling?
Fetal limb defects. (Done at 9-12 weeks)
What is the risk of Amniocentesis?
Abortion (2% risk)
How much weight should a woman gain during Pregnancy?
1 lb/ week
When should Intercourse be avoided during Pregnancy?
Cervical dilation, placenta previa, premature labor, vaginal bleeding, ruptured membranes, genital herpes
What are Braxton-Hicks Contractions?
Irregular contractions with closed cervix. (preparing for birth)
What is Shoulder Dystocia?
Head is out of vagina, shoulder is stuck. (Occurs in late term deliveries and DM in mom)
What are the symptoms of Pre-eclampsia?
Headaches, changes in vision, and epigastric pain
What is Pre-Eclampsia?
Ischemia to the placenta causes HTN greater than 140/90
What is the Treatment for Pre-Eclampsia?
Delivery, MgSO4 (seizures), Hydralazine (BP)
What is HELLP Syndrome?
Hepatic injury causing:
H- Hemolysis
EL- Elevated Liver Enzyme
LP- Low Platelets
What is Eclampsia?
HTN with seizures
What is the Treatment for Eclampsia?
4mg MgSO4 IV (Seizure prophylaxis)
What is Chorioamnionitis?
Fever, uterine tenderness, decreased fetal HR
What are the symptoms of Amniotic Fluid Emboli?
Mom just delivered Baby and mom has SOB, due to PE, leads to death
What is Endometritis?
Postpartum uterine tenderness
What is an Incomplete Molar Pregnancy?
2 Sperm + 1 egg (69, XXY) mom “cooks the parts” has embryo parts
What is a complete molar pregnancy?
2 Sperm and no egg (46, XX) both are paternal, bunch of grapes, dad eats grapes, no embryo
(GROSS!)
What is the most common cause of first trimester maternal death?
Ectopic pregnancy
What is the most common cause of first trimester spontaneous abortions?
Chromosomal abnormalities
What are the most common causes of third trimester spontaneous abortions?
Anti-Cardiolipin Ab, placenta probelms, infection, incompetent cervix
What is Placenta Previa?
The placenta is implanted wholly or partially in lower uterine segment
What is Vasa Previa?
Babies blood over OS
What is Placenta Accreta?
Placenta is attached to the endometrium
What is Placenta Percreta?
Placenta perforates through serosa
What is Placenta Abruptio?
Severe pain due to premature separation of the placenta from myometrium
What is Velamentous Cord Insertion?
Fetal vessels insert between chorion and amnion
What is Uterus Rupture?
Tearing sensation, halt of delivery
What is Materninty Blues?
Postpartum crying and irritability