The paper reviews medical literature to determine the origin and clinical significance of the common requirement for a minimum preoperative haemoglobin level of 10g/100 ml.
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Questions the evidence basis for the longstanding 10 g/dL preoperative haemoglobin threshold; leaves open optimal transfusion triggers for prospective trials.
It is a common practice in many anaesthetic centres throughout the world to require a minimum preoperative haemoglobin level of 10g/100 ml of blood or more, but very few references are quoted by writers on this subject. A search of relevant medical literature has been made in an attempt to establish the origin and significance of the preoperative haemoglobin requirements recommended.
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R. E. Rawstron (1976) studied this question.
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