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

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Test Classification Provides information regarding the medical device classification for laboratory test kits and reagents. Tests may be classified as cleared or approved by the US Food and Drug Administration (FDA) and used per manufacturer's instructions, or as products that do not undergo full FDA review and approval, and are then labeled as an Analyte Specific Reagent (ASR), Investigation Use Only (IUO) product, or a Research Use Only (RUO) product.

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Medical Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.

81511-Fetal congenital abnormalities, biochemical assays of four analytes (AFP, uE3, hCG [any form], DIA) utilizing maternal serum, algorithm reported as a risk score (may include additional results from previous biochemical testing)

LOINC® Code Information Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the result codes returned for this test or profile.

Result IDReporting NameLOINC Code
7058Recalculated Maternal Serum Screen43995-0
3009Collection Date51953-8
7823Birthdate21112-8
7834Calculated age at EDD43993-5
26717Maternal Weight29463-7
26718Maternal Weight29463-7
IDDInsulin dependent diabetes33248-6
RACEBlack race32624-9
MULTFNumber of Fetuses55281-0
IVFPIVF pregnancy47224-1
7816Gestation (GA) by U/S11888-5
7817Date of U/S34970-4
10054EDD by U/S scanIn Process
2907Last Menstrual Period (LMP)8665-2
7753EDD by LMP11779-6
7206Gestation (GA) by dates11885-1
7200Date of estimateIn Process
7201Gestation (GA) by physical exam11884-4
7202Date of physical examN/A
7203GA on collection by U/S scan11888-5
7204GA on collection by dates11885-1
7205GA on collection by physical exam11884-4
7830GA used in risk estimate21299-3
10351AFP31993-9
10352uE327259-1
10353hCG, TOTAL2116-2
10354INHIBIN2478-6
10334Down syndrome screen risk estimate43995-0
10335Down syndrome maternal age risk49090-4
10337Trisomy 18 screen risk estimate43994-3
10356INTERPRETATION59462-2
10248Additional comments55107-7
10357RECOMMENDED FOLLOW UPN/A
10358GENERAL TEST INFORMATION62364-5
32284Other Information52535-2