 The patient was brought to the Hospital Emergency Department on 09/30/09 after experiencing an episode of confusion for which he has no recall the previous day.  He has no recollection of the event.  The following information is obtained from his medical record.  On 09/29/09, he reportedly went to a five-hour meeting and stated several times "I do not feel well" and looked "glazed."  He does not remember anything from midmorning until the middle of the night and when his wife came home, she found him in bed at 6 p.m.