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Test ID BLOD5040 Heparin Anti-XA

Useful For

Useful for monitoring Unfractionated Heparin anticoagulation therapy. 

AKA

Heparin XA, Unfractionated Heparin

Specimen Type/Requirements

Blue top (Sodium Citrate) tube - Plasma, Double Spun Platelet Poor

 

See Coagulation Testing and Platelet Poor Plasma Preparation

 

It is critical that the plasma is double spun and platelet poor.

 

Interferences:

Hemolysis: Moderate to Severe; HGB greater than 200 mg/dL

Lipemia: Greater than 690 mg/dL

Conjugated (Direct) Bilirubin: Greater than 28.8 mg/dL

Unconjugated (Indirect) Bilirubin: Greater than 13.8 mg/dL

Specimen Volume

 Preferred Volume     1.0 mL   
 Minimum Volume     0.5 mL

 

Stability/Transport

 Room Temperature     2 hours     
 Refrigerated     Not Acceptable     
 Frozen     1 month     Preferred for transport   

 

Performed Test Frequency

Monday through Sunday

Additional Information

This assay should not be used for measuring Rivaroxiban or Apixaban.  See specific assays for these medications.

Methodology

Chromogenic

Performing Lab

Sanford Laboratories Sioux Falls

CPT

85520