Sabo B, Smith R B, Gilbert T J
Department of Anesthesiology, University of Texas Health Science Center, San Antonio 78284-7838.
Ophthalmic Surg. 1988 Apr;19(4):249-51.
Ten patients undergoing elective cataract surgery with local anesthesia were evaluated for rebreathing using mass spectrometry and arterial blood gas analysis. Results showed a 10 or 51 oxygen-air mixture with an inspired oxygen concentration of 50% (FIO2) administered via a face tent maintained normal blood gases and a satisfactorily low inspired carbon dioxide (FICO2) in conscious patients who were free of lung disease.
