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HelpTest Code LAB317 Heparin Unfractionated (Anti-XA UFH)
Intended Use
Used for the quantitative determination of the heparin (UFH) anti-Xa activity to monitor treatment efficacy
Methodology
One-stage, Chromogenic assay
Performing Laboratory
RCH-SPH
Specimen Requirements
Required: Platelet-poor plasma (sodium citrate)
Collection Container/tube: Light blue-top (3.2% sodium citrate) tube
Submission Container/Tube: Plastic vial
Specimen Volume: 1.0 mL (minimum volume 0.5 mL)
Collection Instructions: Spin down, remove plasma and spin plasma again within one hour from the time of specimen collection. Hemolyzed samples with be rejected. Forward promptly.
Additional Information: Double-centrifuged specimen is critical for accurate results as platelet contamination may cause spurious results.
Specimen Stability
Ambient: 2 hours
Frozen (Preferred): -20°C for 14 days
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
85520