Monitored Anesthesia Care (MAC) is a technique of sedation provided by the anesthesia team which involved providing sedation while closely monitoring the patient’s vital signs and comfort level.  The anesthesia team uses pain relievers and sedatives to induce an altered state of consciousness that minimizes pain and discomfort. The depth of sedation varies with the invasiveness of the procedure, the patient’s preference, and the patient co-existing medical conditions.  A brief period of amnesia may erase any memory of the procedure.