Final Flashcards
When can cell free fetal dna testing be done
10-14 weeks until delivery
What is PAPP-P HCG testing
PAPP-A is a glycoprotein produced by the placenta and the decidua
What does a low PAPP-A score indicate?
Low PAPP-A may be associated with: A lower birth weight baby as it might indicate that your placenta may not be working as well as it should. An increased chance of having an early birth
During what weeks of pregnancy is a PAPP-A and hCG screening done
this test is performed between 10-14 weeks
During what weeks is the U/S Nuchal translucency test done?
10-14 weeks
When is the fetal anatomy scan completed during what weeks of gestation?
A fetal anatomy scan is done between 15-23 weeks
during what trimester is the quad screen done
the quad screen is done during the 2nd trimester but can be done up to 22 weeks
What is a quad screen? What four substances does it measure in maternal blood?
Alpha-fetoprotein (AFP), a protein made by the developing baby
Human chorionic gonadotropin (HCG), a hormone made by the placenta
Estriol, a hormone made by the placenta and the baby’s liver
Inhibin A, another hormone made by the placenta
What is integrative screening?
integrative screening combines first and 2nd trimester screening
When is the first part of the sequential screen performed
the first half of the sequential screen is done between 11 to 13 weeks 6 days gestation
The nuchal translucency test screens for what disorders?
Aneuploidy
congenital anomalies
What abnormalities does quad screen screen for
aneuploidy and NTD
integrated and sequential screening screen for what disorders
aneuploidy, NTD and congenital anomalies
Cell free fetal DNA screens for?
aneuploidy
which first trimester test screen for only aneuploidy?
maternal cell PAPP-A hCG and cell free dna
