Venous Thrombosis, Non Coumadin, Reflex

Test Code

LAB5210683

Quest Code

9832CP

CPT Codes
85307, 85303, 85306, 85305, 85300, 83090, 86147 (x2), 85240, 86146 (x2), 85730, 85613<br /> *** This test is only available for Client 1405 and 56836 ***

Includes

If Activated Protein C-Resistance is <2.1 ratio, Factor V (Leiden) Mutation Analysis is performed at an additional charge.
If the PTT-LA test is prolonged (>40 seconds), the Hexagonal Phase Confirm is performed at an
additional charge.
If the Hexagonal Phase Confirm is positive or weakly positive, a Thrombin Clotting Time will be performed at an additional charge.
If the dRVVT screen is prolonged (>45 seconds), the dRVVT Confirm is performed at an additional charge.
If the dRVVT Confirm is positive, a dRVVT 1:1 Mix will be performed at an additional charge.

Preferred Specimen

5 mL whole blood collected in an EDTA (lavender-top) tube and
1 mL serum and
1 mL [x7] plasma collected in a 3.2% sodium citrate (light blue-top) tube

Minimum Volume

Plasma: 0.5 mL [x7]
Serum: 0.5 mL
Whole blood: 3 mL

Instructions

Platelet-poor plasma: Centrifuge light blue-top tube for 15 minutes at approximately 1500 g within 60 minutes of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plasma must be free of platelets (<10,000/mcL). Freeze immediately and ship on dry ice.

Transport Temperature

Frozen

Specimen Stability

Whole blood
Room temperature: 8 days
Refrigerated: 8 days
Frozen: 30 days
Serum
Room temperature: 4 days
Refrigerated: 14 days
Frozen: 6 months
Plasma
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 14 days

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

See individual assays

Methodology
See individual assays

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

See individual assays

Reference Range

See Laboratory Report

Clinical Significance

See individual assays

Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92675-2042

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.