Bou Chebl R et al. BMC Emerg Med. 2016; 16: 7. Published online 2016 Jan 29. - doi: 10.1186/s12873-016-0072-7 - PMCID: PMC4731965
"Conclusion
This single centre study suggests that end tidal capnography in adults presenting to the
emergency department with glucose levels > 550 mg/dL may useful in identifying and ruling out DKA. The external validity of the results should be confirmed by further prospective studies."
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Soleimanpour, Hassan, Western Journal of Emergency Medicine 2013;XIV(6):590-594
DOI: http://dx.doi.org/10.5811/westjem.2013.4.14296
"CONCLUSION
DKA patients do require decisive and prompt treatment. The aim of the current study was to introduce capnography as a screening tool for DKA diagnosis. Capnography is a simple, noninvasive and inexpensive method that could be performed at bedside. A linear relation could be detected between capnography and blood bicarbonate values. Capnography could be used to rule out DKA in patients with increased blood sugar levels with a cut-off point of 24.5 mmHg, with sensitivity of 0.90 and specificity of 0.90."