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Guide for Aviation Medical Examiners

Decision Considerations
Disease Protocols - Thromboembolic Disease

An applicant with a history of thromboembolic disease must submit the following if consideration for medical certification is desired:
  1. Hospital admission and discharge summary
  2. Current status report including:
    • Detailed family history of thromboembolic disease
    • Neoplastic workup, if clinically indicated
    • PT/PTT
    • Protein S & C
    • Leiden Factor V
    • If still anticoagulated with warfarin (Coumadin), submit all (no less than monthly) INRs from time of hospital discharge to present

    Warfarin (Coumadin): For applicants who are just beginning warfarin (Coumadin) treatment the following is required:

    • Minimum observation time of 6 weeks after initiation of warfarin therapy;
    • Must also meet any required observation time for the underlying condition; AND
    • 6 INRs, no more frequently than 1 per week

    NOAC/DOACs: For applicants who are just beginning treatment with NOAC/DOACs, the following is required:

    • Minimum observation time of 2 weeks after initiation of therapy; AND
    • Must also meet any required observation time for the underlying condition

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This page was originally published at: https://www.faa.gov/about/office_org/headquarters_offices/avs/offices/aam/ame/guide/dec_cons/disease_prot/thromboembolic/