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Preoperative Laboratory Testing

CBC anticipated significant blood loss, suspected hematological disorder (eg.anemia, thalassemia, SCD), or recent chemotherapy.
  1. Electrolytes diuretics, chemotherapy, renal or adrenal disorders
  2. ECG age >50 yrs ,history of cardiac disease, hypertension, peripheral vascular disease, DM, renal, thyroid or metabolic disease.
  3. Chest X-rays prior cardiothoracic procedures ,COPD, asthma, a change in respiratory symptoms in the past six months.
  4. Urine analysis DM, renal disease or recent UTI.
  5. Tests for different systems according to history and examination
  6. ASA Physical Status Classification System

 

Medical Status

ASA I

normal healthy patient without organic, biochemical, or psychiatric disease

ASA II

mild systemic disease with no significant impact on daily activity e.g. mild diabetes, controlled hypertension, obesity .

ASA III

severe systemic disease that limits activity e.g. angina, COPD, prior myocardial infarction

ASA IV

an incapacitating disease that is a constant threat to life e.g. CHF, unstable angina, renal failure ,acute MI, respiratory failure requiring mechanical ventilation

ASA V

moribund patient not expected to survive 24 hours e.g. ruptured aneurysm

ASA VI

brain-dead patient whose organs are being harvested





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