Home
HelpTest Code SS1 Maternal Sequential Screen I
Additional Codes
Epic EAP: LAB1879
Epic Description: MATERNAL SEQUENTIAL SCREEN PART 1
Synonym
Sequential Screen, 1st Trimester
Collection Limitations
Prenatal Screening information required at Order Entry. Please send completed Prenatal Screen Information sheet with each specimen if unable to transmit required responses. This information can be entered via EPIC or a completed history form must accompany specimen to the laboratory.
The following information must be submitted: ultrasound date with CRL and NT measurement, ultrasonographer certification number from NTQR ir FMF, maternal weight, maternal date of birth, insulin-dependent diabetes status prior to pregnancy, multiple gestation (single, twin, triplets), race, and previous history of Down Syndrome or neural tube defect (NTD) pregnancy of the patient. Sample should be collected between 15 weeks 0 days and 22 weeks 6 days gestation.
Collect specimen between CRL 36 mm and CRL 79.9 mm.
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 |
Instructions for Collection and Transport
Centrifuge specimen and separate from cells within 2 hours of collection. Aliquot serum into plastic vial.
Freeze specimen. Transport frozen on dry ice. Also stable refrigerated 7 days.
Aliquot Requirements
Serum
Optimum 1.0 mL
Minimum 0.6 mL
Performing Lab
Sendout Lab
Reference Lab: Warde Laboratories, Referral code: SEQ1 (Interface code: 3024400)
Assay Frequency
Monday, Wednesday, Thursday, and Friday
Routine Turnaround Time
2-3 days, excluding weekends and holidays.
CSR Storage Requirements
Centrifuge specimen and separate from cells within 2 hours of collection. Aliquot serum into plastic vial. Freeze specimen.
CPT Code Information
81508 (or 84163, 84702)
Patient Preparation
NT measurement is REQUIRED.Sonographer must be certified through either FMF or NTQR. Sample should be collected between 10 weeks 3 days (CRL 36mm) and 13 weeks 6 days gestation (CRL 79.9 mm)