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EPIC CODE: LAB4094 Low Molecular Weight Heparin Assay (Anti XA)

Additional Codes

Sunquest: LMWHO

SPECIMEN PREPARATION

  • separate plasma from cells & spin - 2 x,
  • remove plasma and FREEZE plasma.

REGIONAL HOSPITAL PERFORMING

Collected at UPH Methodist, Proctor and Pekin Hospitals for processing.  

 

OSF PERFORMING LAB 

PREP PRIOR TO COLLECTION

Draw a plain red top tube to remove fluid contamination. Discard this tube.

Collect

  • 2 mL Frozen Plasma 
  • Draw blood into a buffered citrate collection tube (light blue) filled to proper volume (90% of total fill volume).

Storage/Transport Temperature

Transport Frozen

Stability (from collection to initiation)

Delivered to lab within 1 hour of collection. 

Unacceptable Conditions

Specimen subject to rejection platelet poor plasma is not received and/or if the sample is not labelled with two unique patient identifiers (complete first and last name and Date of Birth)

Sodium Citrate tubes

Days Performed

Daily

Methodology

Chromegenic

CPT Codes

85130

Notes

Clinical Significance:

Low Molecular Weight Heparin (LMWH) is an anticoagulant commonly used to decrease the risk of venous or arterial thrombosis. Overdosing with this medication can increase the risk of hemorrhage and inadequate dosing decreases the efficacy of anticoagulation. This drug works as an anticoaagulant by enhancing the ability of plasma antithrombin to bind and inactivate the serine proteases XIIa, Xia, Ixa,Xa and thrombin. Therapeutic monitoring is commonly performed because of the wide interindividual variation in repsonse to this therapy.