Pregnancy Diagnostics Glossary

Glucose intolerance diagnosed during pregnancy in women without pre-existing diabetes.

First visible sign of pregnancy on ultrasound, appearing as a fluid-filled structure containing the developing embryo.

Group of pregnancy-related disorders characterized by abnormal trophoblast proliferation, ranging from benign molar preg...

The rate of fetal growth over time, assessed through serial biometric measurements to identify growth disorders.

Abnormal accumulation of fluid in two or more fetal compartments, indicating severe fetal compromise.

Cervical weakness causing painless dilation and potential pregnancy loss, typically in the second trimester.

Death of a fetus after 20 weeks gestation but before delivery, also known as stillbirth.

Intrauterine growth restriction, condition where fetal growth falls below expected parameters for gestational age.

Complete set of chromosomes arranged and analyzed for number and structure.

Laboratory test used to quantify fetal-maternal hemorrhage by detecting fetal hemoglobin in maternal blood.

Four systematic abdominal examination techniques used to determine fetal position, presentation, and engagement in utero...

Fetal overgrowth defined as birth weight exceeding 4000g or above the 90th percentile for gestational age, associated wi...

Blood tests performed during pregnancy to assess risk of fetal chromosomal abnormalities and neural tube defects.

High-resolution genetic test detecting small chromosomal deletions and duplications.

A Doppler ultrasound measurement used to assess fetal anemia and predict the need for intrauterine transfusion.

Maternal condition that mirrors fetal hydrops, characterized by edema, proteinuria, and hypertension.

Multiple of the median, a statistical measure used to express prenatal screening results relative to population norms.

Condition where different cells have different chromosomal compositions within the same individual.

Maternal serum alpha-fetoprotein, a screening test measuring AFP levels in maternal blood to detect neural tube defects...

Statistical method for expressing maternal serum analyte levels relative to gestational age-specific reference values.

Congenital malformation resulting from incomplete closure of the neural tube during early embryonic development.

Non-invasive prenatal testing using cell-free fetal DNA from maternal blood sample.

Antepartum fetal surveillance test that monitors fetal heart rate response to spontaneous fetal movements.

Nuchal translucency, ultrasound measurement of fluid collection behind fetal neck used in first-trimester screening for...