End-Tidal Pco2 Measurements Sampled at the Distal and Proximal Ends of the Endotracheal Tube in Infants and Children
Authors:
- J. M. BadgwellJBJ. M. Badgwell
- M. E. McLeodMMM. E. McLeod
- J. LermanJLJ. Lerman
- R. E. CreightonRCR. E. Creighton
- 1 October 1987
- journal article
- research article
- Published by Wolters Kluwer Health in Anesthesia & Analgesia
- Vol. 66 (10) , 959???964-964
Abstract
To determine whether the site of gas sampling affects end-tidal gas measurements in pediatric patients, end-tidal Pco2 was measured continuously from the distal and proximal ends of the endotracheal tube in 60 infants and children ventilated with an Air-Shields Ventimeter and a partial rehreathing circuit. These data were compared with simultaneous arterial Pco2 measurements. In infants and children weighing >12 kg, both distal and proximal end-tidal Pco2 values approximated arterial Pco2 measurements. In infants and children weighing <12 kg, however, only distal end-tidal Pco2 measurements approximated arterial Pco2 measurements. It is concluded that in infants and children weighing <12 kg, accurate end-tidal measurements can be obtained only from the distal end of the endotracheal tube.Keywords
This publication has 2 references indexed in Scilit:
- Blood-gas equilibrium of carbon dioxide in lungs: a continuing controversyJournal of Applied Physiology, 1986
- The uptake and excretion of nitrous oxide in the newbornCanadian Journal of Anesthesia/Journal canadien d'anesthésie, 1978