title: The Rees system in infants: fresh gas flow and PaCO2.
abstract: Fresh gas flow from the anaesthetic machine can be set to determine the low level of PaCO2 that is achieved during anaesthesia using Rees variation of the T-piece. It does not however set the upper limits for PaCO2 which is more reliant upon the minute ventilation. For a PaCO2 of 40 mm Hg, it is suggested that the fresh gas flow from the machine be 220 cc/kg. For small infants, a higher flow rate is necessary.
mesh_terms: D000293:Adolescent; D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D002245:Carbon Dioxide; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D012119:Respiration
chemical_list: D002245:Carbon Dioxide