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Anticoagulation - oral - Management
What is warfarin self-testing or self-management?

  • Self-testing is where the person tests their own INR, but contacts a healthcare professional for dose adjustment.
  • Self-management is where the person tests their own INR and also adjusts the dose of warfarin themselves (based on an individualized algorithm).
  • Three self-testing devices are available for use by patients in the UK: CoaguChek XS®, INRatio®, and Protime 3®.
    • The test strips and lancets can be prescribed on an FP10.
    • However, the devices themselves cost from £400 to £800 and are not reimbursable on the NHS.
  • The availability of training and support for self-testing or self-management varies across the UK.
    • Training and on-going review and support is best managed through specialist anticoagulant services (based in primary or secondary care).
    • People should only consider purchasing a self-testing device after discussing the following with their GP or with their anticoagulant service doctor, nurse, or pharmacist:
      • Whether self-testing or self-management services (such as training, support, and specialist review) are available in their area.
      • Their suitability for self-testing or self-management.

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