Coagulation Screening Tests, Fibrinogen Assay, Anticoagulant control

Test Information

• Container:
  Coagulation studies, Sodium Citrate, Light Blue, 2.7ml, Paediatric 1ml (minimum volume)
   
• Collection conditions:
  Samples taken from lines may be contaminated with heparin which could affect results. Samples must be filled to mark, taken with minimum stasis and analysed within 4 hours after venipuncture. May be added to samples less than 4 hours old-
   
• Reporting Frequency:
  Urgent 60-90 minutes (dependent on extent of tests required). Routine 4 hours.
   
• Ref range (male):
  See below in additional information section
   
• Ref range (female):
  See below in additional information section
   

• Additional information

  
  
  Use multidisciplinary request form
  
  Reference range information:
  INR 0.8 - 1.1
  INR (Warfarin) See anticoagulant guides
  APTTR 0.85 - 1.15
  APTT (unfractionated heparin iv) 1.5 - 3.5
  Fibrogen 1.6 - 4.8 g/L
  Anti-Xa (low molecular weight or unfractionated heparin) Refer to haematologist

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