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Preoperative tests

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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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