When Reporting the Time Involved for an Anesthesia Procedure When

When reporting the time involved for an anesthesia procedure when do you start and stop the clock? What is the correct answer?

A) Time starts when the patient is in the pre-operative waiting area before the anesthesiologist is present and ends at the end of the surgery time.
B) Time starts when the patient is in the operating room and the anesthesiologist begins to prepare the patient for the induction of the anesthesia and ends in the operating room at the end of the surgery time.
C) Time starts when the patient is in the operating room and the anesthesiologist begins to prepare the patient for the induction of the anesthesia and ends when the anesthesiologist is no longer in attendance after reporting to the nurses in the PACU (post-anesthesia care unit) .
D) Time starts when the patient is in the operating room before the anesthesiologist is in attendance and ends in the PACU after the anesthesiologist gives report to the post-anesthesia care unit nurses.