Stepwise, Part 2
Test Code
16465
81511
In-home collection is not available in your area through Quest Mobile.
Clinical Significance
Stepwise, Part 2 - See available Test Resources
Test Resources
Test Details
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
Methodology
Chemiluminescence (CL) • Immunoassay (IA)
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.
This test code is for non-New York patient testing. For New York patient testing, use test code 16466.
This test is not available for California patient testing.
This test code is for non-New York patient testing. For New York patient testing, use test code 16466.
This test is not available for California patient testing.
Reference Range(s)
See Laboratory Report
Preferred Specimen(s)
3 mL serum
Minimum Volume
1 mL
Collection 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.
Transport Container
Transport tube
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 14 days
- Refrigerated: 14 days
- Frozen: 28 days
Reject Criteria
Gross hemolysis • Grossly lipemic
Setup Schedule
3 mL serum
1 mL
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 tube
Room temperature
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 28 days
Refrigerated: 14 days
Frozen: 28 days
Gross hemolysis • Grossly lipemic