to determine the accuracy of end-tidal pco2 ( petco2 ) measurements analyzed with a sidestream capnometer in infants and children whose lungs were ventilated with a sechrist infant ventilator and an ayre 's t-piece , we compared petco2 measurements obtained from the proximal ( petco2-p ) and distal ( petco2-d ) ends of the tracheal tube to arterial pco2 ( paco2 ) in 37 healthy infants and children between 1.3 and 24.5 kg .
C0008059
children
C0021270
infant