investigation in bruising

Last reviewed 01/2018

Appropriate baseline laboratory investigations include:

  • full blood count (FBC) with differential
  • peripheral blood smear for platelet abnormalities
  • coagulation screen
    • prothrombin time (PT) - to assess the extrinsic and common clotting pathways
    • activated partial thromboplastin time (aPTT) - to assess the intrinsic pathway
    • Clauss fibrinogen - for fibrinogen function
    • thrombin time - for fibrinogen functional defects (1)
  • hepatic and renal functions (2)

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