A–Z Glossary

Nuchal translucency

Nuchal translucency is an ultrasound measurement of fluid at the back of a fetus’s neck used in early pregnancy screening.

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Genetic screening tests explained

Genetic screening tests explained

What genetic screening means Genetic screening is a structured way to estimate whether a person, pregnancy, fetus, embryo, or newborn has an increased chance of a genetic condition. In pregnancy care, screening is often offered to people who have no symptoms and no known family history. This is what makes screening different from targeted genetic […]

Tests in first second and third trimester explained

Tests in first second and third trimester explained

Understanding prenatal testing: screening versus diagnosis Prenatal tests fall into several broad categories. Routine monitoring tests, such as blood pressure measurement, urine testing, blood counts, and ultrasound assessments, help clinicians follow maternal and fetal health. Screening tests estimate whether a fetus is more or less likely to have certain conditions, such as trisomy 21, trisomy […]