Assessments of Fetal Wellbeing Flashcards
Types of Ultrasounds
External abdominal
Internal tranvaginal
Doppler ultrasound blood flow analysis
External abdominal
noninvasive, more useful after first trimester
Internal tranvaginal
invasive, first trimester, ectopic pregnancy
Doppler ultrasound blood flow analysis
noninvasive; IUGR evaluation (intrauterine growth restriction)
Level 1 Ultrasound
Asses the number of fetuses, presentations, lie, viability, location of placental stem and amniotic fluid volume
Level 2 Ultrasound
evaluates fetal anatomy along with those parameters asses in level 1 = done around 16 weeks
If Maternal Serum Alpha Fetoprotein (MSAFP) is high….
neural tube defect
If Maternal Serum Alpha Fetoprotein (MSAFP) is low…
down syndrome
when is MSAFP screening the most accurate?
16-18 weeks
what is Amniocentesis?
Aspiration through a needle of amniotic fluid (through abdominal wall or intravaginally)
What is Chorionic Villus Sampling (CVS)?
-Aspiration through a thin catheter or syringe of chorionic villi (through abdominal wall or intravaginally)
Risks of Chorionic Villus Sampling (CVS)
- spontaneous abortion
- infection of amniotic fluid
- limb lost
What is PUBS?
- Common method used to sample fetal blood
- Fetoscope into amniotic sac during amniocentesis
- Aspirations blood from umbilical vein
How many fetal movements per hour is considered normal?
3 or more movements in an hour
During what trimester do you preform a non-stress test?
3rd trimester
