Thursday, November 22, 2018

Colorimetric capnography in NGT placement

Q: Colorimetric capnography is a reliable method to identify misplacement of nasogastric tube (NGT) position in mechanically ventilated patients? 

A) Yes 
B) No 


Although not frequently used for this purpose, a  meta-analysis of five studies showed a colorimetric capnography to have a sensitivity of 88 to 100 percent and a specificity of 99 to 100 percent to identify misplacement of the nasogastric tube into the airway in mechanically ventilated patients.



Bennetzen LV, HÃ¥konsen SJ, Svenningsen H, Larsen P. Diagnostic accuracy of methods used to verify nasogastric tube position in mechanically ventilated adult patients: a systematic review. JBI Database System Rev Implement Rep 2015; 13:188.

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