Pregnancy Diagnostics Glossary

Alpha-fetoprotein; fetal protein measured in maternal blood or amniotic fluid screening.

Prenatal diagnostic procedure involving needle aspiration of amniotic fluid for genetic testing.

Abnormal number of chromosomes, either missing or extra chromosomes.

A detailed ultrasound examination performed between 18-22 weeks of pregnancy to detect structural abnormalities in the d...

Beta subunit of human chorionic gonadotropin, a hormone measured in pregnancy testing and prenatal screening.

Comprehensive fetal assessment combining ultrasound parameters and heart rate monitoring to evaluate fetal well-being.

Standardized scoring system used to assess cervical readiness for labor induction.

Biophysical profile, a prenatal test assessing fetal well-being through ultrasound evaluation and fetal heart rate monit...

Fetal position where the buttocks or feet present first at delivery instead of the head.

Abnormal enlargement of the fetal brain ventricles that may indicate neurological abnormalities.

Doppler measurement comparing fetal brain and placental blood flow to assess fetal adaptation to hypoxia.

Surgical procedure involving suture placement around the cervix to prevent preterm delivery in cases of cervical incompe...

Ultrasound finding showing widening of the internal cervical os, indicating cervical incompetence or shortening.

Sonographic measurement of cervical dimensions used to assess preterm birth risk during pregnancy.

Cell-free DNA, fragments of fetal DNA circulating in maternal blood used for non-invasive prenatal screening.

Benign vascular tumor of the placenta that can affect fetal circulation and growth.

Invasive diagnostic procedure involving biopsy of placental tissue to detect fetal genetic abnormalities, typically perf...

The determination of placental arrangement in multiple pregnancies, crucial for risk stratification and management plann...

Prenatal diagnostic procedure involving needle sampling of fetal blood from umbilical cord.

Crown-rump length, ultrasound measurement from fetal head to buttocks used for gestational age dating in early pregnancy...

Measurement from the top of the fetal head to the bottom of the torso, used for gestational age assessment in first trim...

Chorionic villus sampling; early prenatal diagnostic test performed between 10-13 weeks.

Type of twin pregnancy where each fetus has separate placenta and amniotic sac, carrying lowest risk of complications.

Twin pregnancy where each fetus has its own separate placenta and chorion.