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Serum Integrated Screen, Part 1
Test Code16165
CPT Codes
Refer to Maternal Serum, Serum Integrated Screen, Part 2 (test code 16167)<br><strong>**For New York State patient testing, use code 16973**</strong><br><strong>** This test is not available for California patient testing**</strong>
Includes
This will be reported and billed with Maternal Serum, Serum Integrated Screen, Part 2 results.
Preferred Specimen
1.5 mL serum
Minimum Volume
0.8 mL
Instructions
Collect between 9.0 weeks to 13 6/7 weeks.
Must complete patient demographic information using the Maternal Serum Screen Requisition.
Must complete patient demographic information using the Maternal Serum Screen Requisition.
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?)
Moderate to gross hemolysis
Methodology
Chemiluminescence (CL) • Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat; Report available: 3-5 days
Limitations
Refer to Serum Integrated Screen, Part 2 (test code 16167).
Reference Range
See Laboratory Report
Clinical Significance
When used in conjunction with part 2 testing, to assess maternal risk for carrying a fetus with down syndrome (trisomy 21), trisomy 18, or a neural tube defect. Both part 1 and part 2 are necessary to generate the risk assessment. These types of tests are standard-of-care in obstetrics.
