The Time Reported for an Anesthesia Service Begins __________________, and Ends

The time reported for an anesthesia service begins __________________, and ends __________________.

A) When the anesthesiologist administers the anesthetic agent; when the patient leaves the operating table.
B) When the anesthesiologist begins prepping the patient; when the anesthesiologist is no longer in personal post-operative attendance.
C) When the physician begins the procedure; when the physician ends the procedure.
D) When the anesthesiologist begins prepping the patient; when the patient leaves the hospital.