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Sequential Integrated Screen, Part 1 (NY)
Test Code16974
CPT Codes
81508<br /> For non-New York patient testing, use test code 16131
Preferred Specimen
1.5 mL serum
Minimum Volume
0.8 mL
Instructions
Collect between 10.0 weeks to 13.9 weeks. Must complete patient demographic information using the Maternal Serum Screen Requisition.
Additional information: NT measurement, when provided by the physician, will be used for additional interpretation.
Additional information: NT measurement, when provided by the physician, will be used for additional interpretation.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 28 days
Refrigerated: 14 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Chemiluminescence (CL) • Immunoassay (IA)
FDA Status
PAPP-A: This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Quest Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.
Setup Schedule
A.M. Sets up 6 days a week.
Clinical Significance
To assess maternal risk for carrying a fetus with Down Syndrome (Trisomy 21) or Trisomy 18 in the first or second trimester, or a neural tube defect, when used in conjunction with the Part 2 testing. These types of tests are standard- of-care in obstetrics.