Test Details

Mnemonic

QUAD1

Ordering Code

3000356

CPT-4 Code(s)

81511 (or 82105, 82677, 84702, 86336)

Specimen Information

Patient Preparation

Collect sample between 15 weeks 0 days and 22 weeks 6 days gestation.

Collect

Red top

Specimen Preparation

Centrifuge, separate serum from cells within 2 hours of collection and send 1.0 mL serum in a
screw capped plastic vial. Prenatal Screening information required at Order Entry. Please send
completed Prenatal Screen Information sheet with each specimen if unable to transmit required
responses.

Alternate Specimen

Serum separator tube (SST)

Minimum Volume

0.6 mL

Transport Temperature

Refrigerated

Rejection Criteria

Moderately hemolyzed, lipemic or icteric specimens; plasma

Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 60 days

Methodology

Chemiluminescence
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Reference Range

See report
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Performing Laboratory

Warde Medical Laboratory
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New York DOH Approval Status

No
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