MEDizzy - An 8-year-old boy, weighing 30 kg, is undergoing resection

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Pediatric Surgery

An 8-year-old boy, weighing 30 kg, is undergoing resection of a Wilms tumor in the operating room. His starting hemoglobin is 12 g/dL. If the threshold for transfusion is 8 g/dL, the allowable blood loss is ______ (mL):

ExplanationB. Maximum allowable blood loss during surgery can be calculated by the following formula: Maximum allowable blood loss = Patient’s hemoglobin − Allowed hemoglobin/Average of the two × EBV EBV or expected blood volume = 70 mL/kg × weight of the child