Prenatal Diagnostic Procedures (NIPD, CVS, Amniocentesis, Maternal Blood Screening)

Flashcards covering CVS, Amniocentesis, maternal blood screening, NIPD, and related prenatal testing concepts based on Page 1 notes.

What is Chorionic Villus Sampling (CVS) used for, and when is it performed?

It tests for genetic defects and chromosomal abnormalities and is performed around 10–14 weeks of pregnancy.

Where is the sample taken during CVS?

From the placenta.

How long does CVS take to return results?

About 10 days after sampling.

What is a notable risk associated with CVS?

Small risk of limb deformities.

What is Amniocentesis used for and when is it performed?

Tests for chromosomal or metabolic disorders; performed between 14 and 20 weeks of pregnancy.

How long does Amniocentesis take to return results?

About 2 weeks.

What is a risk associated with Amniocentesis?

Small risk of miscarriage.

What is the purpose of Maternal Blood Screening and when is it performed?

Identifies pregnancies with elevated risk for birth defects; performed around 16–18 weeks of pregnancy.

What is the Quad Screen?

A test that measures four substances in the mother's blood to assess risk for birth defects (neural tube defects and chromosomal abnormalities).

Which conditions are specifically mentioned as being screened by Maternal Blood Screening?

Spina bifida and Down Syndrome.

What non-invasive option is mentioned alongside CVS, Amniocentesis, and maternal screening?

Non-invasive Prenatal Diagnosis (NIPD) as alternative procedures.

What additional topic is noted as being explored in prenatal testing?

Sex of the child (fetal sex determination).