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Preoperative tests

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Preoperative tests should be performed where clinically indicated, and the results should be available before the patient goes to theatre.

  • Urea, creatinine, electrolytes, full blood count and blood glucose BM testing shold be carried out in most patients
  • Crossmatch or Group and Save blood as required by the operation.
  • Specific blood tests:
    • Liver function tests in Jaundice, alcohol abuse or malignancy
    • Amylase in acute abdominal pain
    • Blood Glucose in diabetic patients
    • Clotting studies in liver disease or if on anticoagulants
    • Thyroid function tests in thyroid disease
    • Sickle cell tests in those from at-risk groups
  • Chest X ray - if indicated
  • ECG - if indicated

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