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Stepwise, Part 2
Test Code16465
CPT Codes
81511<br><strong>This test code is for non-New York patient testing. For New York patient testing, use test code 16466.</strong><br><strong>This test is not available for California patient testing.</strong>
Includes
AFP
Unconjugated Estriol
hCG
Inhibin A, Dimeric
PAPP-A (Pregnancy-associated Plasma Protein-A) and hCG from Stepwise, Part 1
Interpretation
Unconjugated Estriol
hCG
Inhibin A, Dimeric
PAPP-A (Pregnancy-associated Plasma Protein-A) and hCG from Stepwise, Part 1
Interpretation
Preferred Specimen
3 mL serum
Minimum Volume
1 mL
Instructions
Collect between 14.0 weeks to 22.9 weeks.
Mother's date of birth (mm/dd/yy), Estimated Date of Delivery by US/LMP/PE, weight, race, insulin-dependent diabetes status, repeat sample (Y/N), number of fetuses, and neural tube defect history must be provided for interpretation of results.
Must complete all patient demographic information using the appropriate questions from the entry fields in the regular requisition.
Mother's date of birth (mm/dd/yy), Estimated Date of Delivery by US/LMP/PE, weight, race, insulin-dependent diabetes status, repeat sample (Y/N), number of fetuses, and neural tube defect history must be provided for interpretation of results.
Must complete all patient demographic information using the appropriate questions from the entry fields in the regular 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?)
Gross hemolysis • Grossly lipemic
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.
Report Available
Reports in 1 to 2 days.
