I am an award-winning journalist and a New York Times best selling author. My latest book is Newton's Football: The Science Behind America's Game, published by Ballantine in November 2013. My other books include The Billion Dollar Game: Behind the Scenes at the Super Bowl and Clapton's Guitar: Watching Wayne Henderson Build the Perfect Instrument.
Note: Do not use these HCPCS modiï¬ers if the provider of service is a Qualiï¬ ed Nonphysician Anesthetist. 1  or AA. â¢ AA : Anesthesia service personally performed by the anesthesiologist. â¢ QY: Medical direction of one Qualiï¬ed Nonphysician Anesthetist by an anesthesiologist.
Twilight anesthesia is an anesthetic technique where a mild dose of general anesthesia is applied to induce anxiolysis (anxiety relief), hypnosis, and anterograde amnesia (inability to form new memories). The patient is not unconscious, but sedated.wilight anesthesia is an anesthetic technique where a mild dose of general anesthesia is applied to induce anxiolysis (anxiety relief), hypnosis, and anterograde amnesia (inability to form new memories). The patient is not unconscious, but sedated.