SEQUENT 1, SEQUENT 2
Sequential Screen™, Serum
EPIC Test Procedure Code: LAB2390 (Sequent 1); LAB2391 (Sequent 2)
Performing Lab:
Referral Laboratory
Required Patient Info:
Clinical Information for Maternal serum/Plasma Screening section must be completely filled out.
Container Type:
Serum gel tube
Specimen Type:
Serum
Preferred Volume:
2-3 mL
Collection Procedure:
1. Two separate specimens are required for this test.
2. The first trimester specimen must be drawn between 10 weeks, 3 days and 13 weeks, 6 days.
3. The second trimester specimen must be drawn between 15 weeks, 0 days and 21 weeks 6 days.
4. The gestational age for the first trimester specimen and second trimester specimen is required on the request form for processing.
5. Label the specimen appropriately (first trimester or second trimester).
Store and Transport:
Refrigerated
CPT Codes:
MAAA 81508 - Sequential 1 (EAP 30022589)
MAAA 81511 - Sequential 2 - 81511 (EAP 30022594)
Test Schedule:
Varies
Reference Ranges:
Please refer to the performing lab report for applicable reference ranges