ANTI Xa LMW HEPARIN

Message

HEMATOLOGY/COAGULATION

Test Code

ANTI Xa LMW

Alias/See Also

LOW MOLECULAR WEIGHT HEPARIN

Preferred Specimen

BLUE-NA CIT-PLASMA

Minimum Volume

2.7 MLS FULL TUBE

Instructions

Draw a Blue(Na Citrate) tube. Tube must be filled completely. Deliver to lab ASAP for processing. Sample must be spun within 1 hour of collection, and processed within 4 hrs of collection. Monitoring prophylactic dose is not routinely performed, thus guidelines for target peak Anti Xa levels are not available. Levels between 0.20-0.50 IU/mL may be appropriate. Draw a Blue(Na Citrate) tube. Tube must be filled completely. Deliver to lab ASAP for processing. Sample must be spun within 1 hour of collection, and processed within 4 hrs of collection.

Transport Container

PLASTIC TUBE

Transport Temperature

BRING TO LAB ASAP OR
2-8 c REFRIGERATED

Specimen Stability

1 HOUR

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

If plasma is hemolyzed or short sampled.

Methodology
One stage, Chromogenic Assay

Setup Schedule

DAILY

Report Available

1 HR

Limitations

TEST MUST BE COMPLETED WITHIN 4 HRS OF COLLECTION

Reference Range

Low Molecular Weight-Therapeutic (Twice Daily Dosage): 0.4 - 1.1 IU/mL
(Once Daily Dosage): 1.0 - 2.0 IU/mL

Clinical Significance

Test for Monitoring Heparin Therapy

Performing Laboratory
WHITE RIVER JUNCTION VT VA HEMATOLOGY/COAG 802-295-9363 EXT: 5521, 5523

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.