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Test ID: HEPN
Heparin Anti-Xa Assay, Plasma

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Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

> or =18 years

UFH therapeutic range: 0.30-0.70 IU/mL

LMWH therapeutic range:

0.50-1.00 IU/mL for twice daily dosing

1.00-2.00 IU/mL for once daily dosing

(sample obtained 4-6 hours following subcutaneous injection)

 

> or =8 weeks-17 years

UFH therapeutic range: 0.30-0.70 IU/mL

LMWH therapeutic range: 0.50-1.00 IU/mL (sample obtained 4-6 hours following subcutaneous injection)

LMWH prophylactic range: 0.10-0.30 IU/mL

 

<8 weeks

Reference values have not been established for patients who are less than 8 weeks of age.



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