Stepwise, Part 1

Test Code

16463

CPT Codes
81508<br /> **Not for California Clients** For New York patient testing, use test code 16464

Includes

PAPP-A, hCG

Preferred Specimen

1.5 mL serum

Minimum Volume

0.8 mL

Instructions

Collect between 10.0 weeks to 13 6/7 weeks. Must complete all patient demographic information using the appropriate questions from the entry fields in the regular requisition.

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 45 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis

Methodology
Chemiluminescence (CL) • Immunoassay (IA)

FDA Status
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.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.