title: Preoperative haemoglobin levels.
abstract: 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.
mesh_terms: D000743:Anemia, Hemolytic / Q000150:complications; D000755:Anemia, Sickle Cell / Q000150:complications; D000758:Anesthesia; D000818:Animals; D004285:Dogs; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D051379:Mice; D013514:Surgical Procedures, Operative
chemical_list: D006454:Hemoglobins