Which tests must be performed initially?

Initial coagulation testing consists of determination of Quick's time (prothrombin time) and Activated Partial Thromboplastin Time (APTT). These two tests will reveal major abnormalities in the exogenous and endogenous coagulation cascades and in the common coagulation cascade.

• What are the stages of haemostasis pre-surgery screening?
  
  
• Which tests must be performed initially?
  
  
• Interpreting Haemostasis Pre-surgery screening test results
  
  
• Additional test procedures after lengthening of Quick's time or of activated partial thromboplastin time
  
  
• What tests are performed?