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HelpTest Code QUADN Maternal Serum, Quad Screen
Additional Codes
Epic EAP: LAB1877
Epic Description: MATERNAL QUAD SCREEN
Synonym
AFP Maternal Screen (Includes AFP, HCG, Estriol and Inhibin A)
Quad Markers
Collection Limitations
This test includes Maternal AFP, HCG, Estriol and Inhibin A. Please submit a patient history form if the required information is not transmitted to Warde electronically. This information can be entered via EPIC or a completed history form must accompany specimen to the laboratory. Specimen must be taken between 15 weeks 0 days and 22 weeks 6 days gestataion.
Specimen Type
Blood
Specimen Required
| Collection Container | Preferred Volume | Minimum Volume | |
|---|---|---|---|
| Preferred |
Gold, Clot Activator with inert gel |
5.0 mL | 4.0 mL |
| Alternate | Red, no anticoagulant, no Gel | 6.0 mL | 4.0 mL |
Specimen Stability
7 days refrigerated
60 days frozen
Instructions for Collection and Transport
Centrifuge specimen and separate serum from cells within 2 hours of collection. Aliquot serum into plastic vial. Freeze specimen. Transport frozen on dry ice.
Aliquot Requirements
Serum
Optimum 1.0 mL
Minimum 0.6 mL
Performing Lab
Sendout Lab
Reference Lab: Warde Laboratories, Referral code: QUAD1 (interface code 300356)
Assay Frequency
Monday, Wednesday, Thursday, and Friday
Routine Turnaround Time
4 days, excluding weekends and holidays.
CSR Storage Requirements
Centrifuge specimen and separate serum from cells within 2 hours of collection. Aliquot serum into plastic vial. Freeze specimen.
Patient Preparation
Sample should be collected between 15 weeks 0 days and 22 weeks 6 days gestation.
CPT code(s)
81511 (or 82105, 82677, 84702, 86336)