Accuracy of Capnography with a 30 Foot Nasal Cannula for Monitoring Respiratory Rate and End-Tidal CO2 in Children
- Cite this article as:
- Mason, K.P., Burrows, P.E., Dorsey, M.M. et al. J Clin Monit Comput (2000) 16: 259. doi:10.1023/A:1011436329848
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We tested the accuracy of a low flow (50 cc/min) sidestream capnographysystem equipped with an experimental 30-foot nasal cannula to monitor ventilatory status in children. End-tidal CO2 and respiratory rate, both at room air and in the presence of supplemental oxygen, were recorded simultaneously from the experimental 30-foot nasal cannula and the standard, FDA approved, 10-foot nasal cannula. The 30-foot nasal cannula was as accurate as the 10-foot nasal cannula in measuring respiratory rate and end-tidal CO2 in children. When supplemental oxygen was delivered by facemask, there was no dilutional effect on the respiratory rate or end-tidal CO2 recorded with either the 10-foot or 30-foot nasal cannulas inplace.