Table of ContentsDefinition / general
Cite this page: Parsons JC. Low molecular weight heparin (LMWH). PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/coagulationLMWH.html. Accessed November 29th, 2023.
Definition / general
- Recommended to monitor using chromogenic antifactor Xa assay on specimens obtained up to 4 hours after subcutaneous injection of LMWH (Chest 2001;119:64S)
- Recommended to use different calibrations for LMWH and unfractionated heparin, and to establish calibration curves for each lot and type of LMWH
- Don’t use PTT to monitor because LMWH doesn’t affect thrombin or factor IXa