Heparin Assay (Unfract)

Test Code

HEPUNF

Alias/See Also

ANTI-Xa UNFRAC

CPT Codes
85520

Preferred Specimen

1 Blue

Minimum Volume

Blue tops must be filled to Minimum Fill Indicator Line on tube.

Other Acceptable Specimens

none

Instructions

Outreach clients should double-spin the blue top plasma, remove the plasma from the RBC button, and freeze in a polypropylene tube.

Transport Container

BLUE/1

Transport Temperature

Blue - RT Polypropylene tube - Frozen

Specimen Stability

Whole Blood - 1 hour RT Separated plasma - 2 hours at RT or 1 month frozen

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

Sample must be free of clots and hemolysis.

Methodology
Colorimetric

Setup Schedule

Daily upon Receipt

Report Available

Upon Completion of Analysis

Reference Range

The UFH therapeutic range is 0.30 – 0.70 IU/mL

The LMWH therapeutic range is 0.60 – 1.00 IU/mL

Clinical Significance

Unfractionated heparin (UFH) and low molecular weight heparin (LMWH) are used for the prevention and treatment of thromboembolic diseases. The quantitative determination of plasma levels is useful tool for monitoring treatment efficacy.

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.