Heparin, Anti-Xa
- Laboratory
- Quest Diagnostics
- Test code
- 30292
- Specimen
- Plasma
- Fasting
- Not stated
- LOINC
- 3271-4
- Turnaround
- Set up: Mon-Sat (a.m.); Report available: 4 days
Laboratory assay overview
This assay is useful in measuring heparin concentration in patients treated with low molecular weight heparins (i.e. Enoxaparin/Lovenox) or unfractionated heparin. It is not intended for measurement of Rivaroxaban (Xarelto) or Fondaparinux (Arixtra). Refer to test code 90981 for Rivaroxaban measurement and test code 16103 for Fondaparinux measurement.
Quest Diagnostics population reference ranges
Quest Diagnostics calculates these statistical intervals for this specific assay and demographic group, not as universal optimal targets.
| Population | Range |
|---|---|
| UFH Therapeutic Range | 0.30-0.70 IU/mL |
| Enoxaparin (Lovenox) | not stated |
| Therapeutic bid dosing | 0.6-1.0 IU/mL |
| Therapeutic qD dosing | >1.0 IU/mL |
| Tinzaparin (Innohep) | not stated |
| Therapeutic qD | 0.85 IU/mL |
| Dalteparin (Fragmin) | not stated |
| Therapeutic qD | 1.05 IU/mL |
View complete laboratory reference notes
UFH Therapeutic Range 0.30-0.70 IU/mL LMWH Therapeutic Ranges (target anti-Xa levels measured 4 hours after dosing): Enoxaparin (Lovenox) Therapeutic bid dosing 0.6-1.0 IU/mL Therapeutic qD dosing >1.0 IU/mL Tinzaparin (Innohep) Therapeutic qD 0.85 IU/mL Dalteparin (Fragmin) Therapeutic qD 1.05 IU/mL For more information on this test, go to: http://education.questdiagnostics.com/faq/FAQ53v1 (This link is being provided for informational/ educational purposes only.)
Quest Diagnostics test directory, test code 30292