title: Evaluation of rebreathing in patients undergoing cataract surgery.
abstract: 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.
mesh_terms: D000328:Adult; D000368:Aged; D002245:Carbon Dioxide / Q000032:analysis; D002387:Cataract Extraction; D006801:Humans; D013058:Mass Spectrometry; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000379:methods; D009458:Neuroleptanalgesia; D010100:Oxygen / Q000032:analysis / Q000097:blood*; D012119:Respiration
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen