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Anti Xa (UFH) Heparin*

Important Note

*This test is orderable in Cerner as Anti Xa (UFH)

For use in patients on unfractionated heparin therapy, i.e. IV heparin

Most likely used in the hospital setting to monitor dosage

Specimen Requirements

Specimen Type: Whole blood   

Container/Tube: Light-blue top (citrate)  

Specimen Volume: Full tube

Specimen Minimum Volume: 2.7 mL Collection Instructions: TUBE MUST BE FILLED TO LINE ON TUBE. (Do not under fill or overfill tube.) Send specimen in original tube.

Performing Laboratory

Rutland Regional Medical Center Laboratory

Reference Values

Therapeutic Ranges:

0.3 to 0.7 IU/mL : DVT/PE Treatment

0.3 to 0.5 IU/mL: Unstable Angina /NSTEMI/STEMI/Excessive bleed risk/Bridge therapy

Critical Values

>1.09 IU/mL

 

Day(s) Performed

Daily

Analytical Time:

1 day

Available Stat

Methodology

Photo-Optical

Specimen Transport Temperature

Must be centrifuged within 1 hour and plasma separated. Must be processed within 2 hours.

CPT Code

85730