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Test ID: QUAD1    
Quad Screen (Second Trimester) Maternal, Serum

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Useful For Suggests clinical disorders or settings where the test may be helpful

Prenatal screening for open neural tube defect (alpha-fetoprotein only), trisomy 21 (alpha-fetoprotein, human chorionic gonadotropin, estriol, and inhibin A) and trisomy 18 (alpha-fetoprotein, human chorionic gonadotropin, and estriol)

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

See Prenatal Aneuploidy Screening and Diagnostic Testing Options in Special Instructions

Special Instructions Library of PDFs including pertinent information and forms related to the test

Method Name A short description of the method used to perform the test

Immunoenzymatic Assay

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.

Yes

Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

QUAD SCRN (2nd Tri) Maternal, S

Aliases Lists additional common names for a test, as an aid in searching

AFP 4 Marker Screen
AFP Maternal Screening
AFP Neural Tube Defects
E3 (Estriol)
Maternal Screening, AFP Four Marker
QUAD
Triple Test
UE3 (Unconjugated Estriol)