Anti Xa - Heparin (unfract)

Test Code

HEPA (Xa) - NOCO

CPT Codes
85520

Preferred Specimen

3.2% sodium citrate - blue top tube

Instructions

The light blue capped tubes, containing 3.2% buffered sodium citrate, used for coagulation testing must be allowed to fill completely (after filling a small air space will normally be present). We cannot accept a short filled tube. Centrifuge within 1 hour of collection. Complete testing with in 4 hours of collection or transfer specimen to polypropylene plastic tube using a plastic transfer pipette. Freeze plasma < -20°C

Transport Temperature

Frozen

Specimen Stability

· 4 hours at 2-8°C or 20°C,

· 2 weeks at -20°C

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

Clotted

Serum received instead of Sodium Citrate plasma

Specimen past stability

Frozen plasma received thawed

Underfilled or Overfilled, blood/anticoagulant ratio must be 9/1; Specimens must be between 90% -110% full

Collected in a 3.8% Sodium Citrate tube instead of 3.2% Sodium Citrate tube

Drawn in outdated/expired tube

Hemolyzed, icteric, or lipemic sample
Samples received on ice

Setup Schedule

Every day, continuously

Report Available

Same Day

Reference Range

UF Heparin0.30 – 0.70 IU/mLLMW Heparin
(NCMC only)0.60 – 1.00 IU/mL

Clinical Significance

Unfractionated Heparin (UFH) and Low molecular weight heparins (LMWH) are used for the prevention and treatment of thromboembolic diseases. The quantitative determination of plasma UFH and LMWH levels are useful for monitoring treatment efficacy.

Performing Laboratory
Sterling Regional Medical Center
East Morgan County Hospital
North Colorado Medical Center
Banner Fort Collins Medical Center

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.