HEPARIN ANTI-XA ASSAY LOW MOLECULAR WEIGHT

General Information

HLAB/HOL Code: LMWXA
UPHSM LIS Test #: 317
Schedule: DAILY
Testing Time: 1 DAY
Testing Lab: UP Health System-Marquette

Specimen Info
Only 1 specimen type required, unless otherwise specified

Volume: 1.5 mL
Temperature: Frozen
Tube Type: 1 Blue Top (Citrate)
Collection Info:
Immediately centrifuge with a sure-sep II or spin down, remove plasma, and spin plasma again. Place plasma in plastic vial and freeze.

Methods

Dade Behring BCS coagulation analyzer, chromogenic

Clinical Utilities

Intermittent monitoring of LMW heparin for patient's with a high risk of bleeding, renal insufficiency, risk factors during pregnacy, heparin allergy long term LMW use, and for infants and children.

CPT Codes

85130

* The CPT codes provided 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 payer being billed.

Reference Range

Expected therapeutic range for low molecular weight heparin (measured 4 hours after dosage):
  For twice-a-day dosage: 0.4 - 1.1 IU/mL
  For once-a-day dosage: 1.0 - 2.0 IU/mL
The patient's result is not accurate if the patient is receiving unfractionated heparin or other anticoagulant.