Clinical haematology · UKMLA & AKT
Vitamin K deficiency and warfarin-related coagulopathy
A free high-yield preview for the UKMLA Applied Knowledge Test. Below are the key points to recognise vitamin k deficiency and warfarin-related coagulopathy — the full SA Note notes add investigations, management, complications and 10 practice questions.
Key high-yield points
- The most tested discriminator - distinguish vitamin K deficiency/warfarin from DIC, haemophilia, and thrombocytopenia by the profile below.
DIC key pattern: low platelets + low fibrinogen + elevated FDPs/D-dimer + prolonged PT and APTT. Normal fibrinogen and platelets exclude isolated vitamin K deficiency from DIC.
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