APTT Non-Correction with Mixing
Non-Correction of APTT with Mixing
If the APTT remains elevated despite addition of control plasma, this suggests that there is an inhibitor present.
This occurs commonly in the context of heparin, though may also occur with antiphospholipid syndrome.
Causes of APTT Non-Correction with Mixing
- Heparin
- Factor IIa inhibitors (e.g. dabigatran)
- Lupus anticoagulant
- Specific factor inhibitors
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