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Test Code XA Anti-Xa Level

Important Note

Send immediately to lab. Test run on Monday and Thursday.

For outpatient locations: 

Specimen must arrive within 4 hours of draw.

Must be collected by 12 noon. Call the lab at 201-447-8351

Specimen Requirements

Container/Tube: Light blue-top (3.2% sodium citrate) tube

Specimen Volume: Full 4.5-mL tube of whole blood

Collection Instructions: Immediately invert tube and mix gently 8 times. Clotted blood is not acceptable. Avoid hemolysis.
Note: Label specimen appropriately.

 

Specimen Transport Temperature

Ambient

Performing Laboratory

The Valley Hospital

Reference Values

See lab report for reference range.

Test Classification and CPT Coding

85520