Disproportionate Fetal Growth, Antepartum Testing & Fetal Orientation in Utero Flashcards
Define Intrauterine Growth Restriction(IUGR)
Fetus with an estimated fetal weight(EFW) <5th-10th percentile for gestational age.
can be: Symmetric IUGR or Asymmetric IUGR(usually normal head but tiny body)
define Macrosomia. Complications for mom & baby?
EFW >90-95th for gestational age.
Mom: perineal lacerations, PPH, Emergency C-section, pelvic floor injury.
Fetus: shoulder dystocia, birth injury, asphyxia
What is a Contraction Stress Test(CST)? What do you want to see here?
tests ability of fetus to tolerate transitory decreases in intervillous blood flow that occur with uterine contractions. Expensive and 50% false +.
Negative CST = no peaks on test = good sign!
What is a Nonstress Test? What are nomal results? what do you want to see?
tests frequency of fetal movements using an external heart rate monitor.
- <32 wks >10 bpm lasting >10s
- > 32 wks >15 bmp lasting >15s
you want to see peaks on test
oligohydramnios = —cm
<5cm fluid
Borderline oligohydramnios = —cm
5-8cm fluid
normal amniotic fluid = —cm
9-25cm of fluid
polyhydramnios = –cm
25 cm fluid
What is an Umbilical Artery Doppler? Was are some nonreassuring findings that may indicate need for delivery?
measures ratio of systolic and diastolic blood flow in the umbilical artery = bottom of troft should be above baseline for normal.
*Nonreassuring findings = absent diastolic flow & reversed diastolic flow
what is the most common fetal lie& presentation in utero?
longitudinal = mom and baby on same vertical axis & cephalic = head comes out first
What does it mean if a babys lie is longitudinal?
baby and mom are in same vertical axis
What does it mean if a babys lie is transverse?
baby is at a right angle to the mother
What does it mean if a babys lie is oblique?
baby is at 45 degree angle to mother
describe a baby in frank breech
baby in breech w/legs extended up to head
describe a baby in complete breech
baby in breech with knees pulled against tummy
