testing Flashcards
nuchal, translucency testing
11 weeks
Test for trisomy disorders
Noninvasive
Screening tool, not diagnostic
Greater than 3MM - at risk
Transvaginal ultrasound
sterile probe into vagina
predictor of preterm birth
Doppler studies
Umbilical velocimetry
Measures blood flow and changes in maternal and fetal circulation
Nonstress test
Checks fetus and contractions
Measures accelerations of heart rate with movement and contractions
Shows adequate oxygen
Reactive versus non-reactive
fetal acoustic stimulation
Sound vibrations to stimulate baby
Should show accelerations in heart rate
biophysical profile
One – breathing
Two – movements
Three – tone
Four – amnionic fluid
* five – non-stress test, if abnormal findings
when are biophysical profiles done usually
Around 28 weeks
What’s a normal BPP score
8/8
Contraction stress test
evaluates, oxygen and carbon dioxide exchange of placenta
With contractions – intrauterine pressure increases, blood flow decreases
Normal equals negative
chorionic villus sampling
Early diagnosis 10–13 weeks
Test for fetal DNA information
folic acid requirement during pregnancy
400 mcg per day before
1mg per day during