What is so important about measuring blood pressure during a surgical case?
A. Intermittent or continuous blood pressure during surgical procedures is monitored to provide valuable information about cardiac output, cardiac pressures and hemodynamic stability. Interpretation of perioperative BP is useful in that it enables physicians to intervene with proper therapy as necessary. Perioperative BP is specifically monitored to evaluate the effects of anesthetic medications on the cardiovascular system, the adequacy of noxious reflex suppression, fluid overload or deficit, need for blood replacement, as well as the need for vasopressor or vasodilator therapy. Continuous beat-to-beat arterial BP monitoring is highly desirable in subjects with cardiac or cerebrovascular disease, in surgical procedures where periods of rapid blood loss are likely, and in any case where hemodynamic instability is anticipated.
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