It is in no boastful spirit and it is without exaggeration that we venture to claim that the tremendous advances in surgery in recent years parallel directly the advances in anesthesia and the care of patients before and after operation. The development of new methods and new agents and the constantly increasing knowledge of human physiology have made many modern surgical procedures not only possible but practicable.
STUDIES PRIOR TO ANESTHESIA
When a patient comes to the hospital prepared to undergo surgical intervention, a careful history and physical examination will normally be adequate in the assessment of his physical status. Some of the simpler laboratory investigations are considered necessary. If the surgical or anesthetic procedure which is contemplated is likely to place undue stress on the patient, it is necessary to conduct investigations in greater detail. These, with the newer methods, are valuable in estimating a patient's tolerance to the