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Test Code ANTXA Anti-Xa

Important Note

The is an Inpatient only test.

Questions should refer to Pharmacy x3164.

Additional Codes

Ordering Mnemonic
ANTXA

 

Performing Laboratory

Holland Hospital Laboratory Services

Specimen Requirements

Container/Tube: Light blue-top sodium citrate tube. Clotted blood is not acceptable.

Specimen Volume: Full tube of blood

Collection Instructions: Invert 6 times to mix blood

Specimen Transport Temperature

Ambient (Room temperature up to 4 hours) NOTE: test must be performed within 4 hrs of collection or will be rejected.

Day(s) Test Set Up

Monday through Sunday

Available STAT

Test Classification and CPT Coding

85520 (HH Bill Code 022674522)

Reference Values

Adult Therapeutic Range:
UFH therapeutic range: 0.30-0.70 IU/mL
(6 hours following initiation or dose adjustment)
LMWH therapeutic range: 0.50-1.00 IU/mL for twice daily dosing
LMWH therapeutic range: 1.00-2.00 IU/mL for once daily dosing
LMWH prophylactic range: 0.10-0.30 IU/mL