Waveform Capnography Compared to Colorimetric Carbon Dioxide Detection During Tracheal Intubation of Critically Ill Adults

This study will compare the sensitivity and specificity of waveform capnography versus colorimetric carbon dioxide detection to identify tracheal placement of the endotracheal tube during intubation of critically ill adults.

Inclusion Criteria: 1. Patient is located in a participating unit (ED or ICU) 2. Patient is undergoing tracheal intubation. 3. The clinician intends to use an exhaled CO2 detection device to confirm tracheal placement of the tube. Exclusion Criteria: 1. Patient is known to be a prisoner 2. Patient is known to be \< 18 years old 3. A responsible clinician has determined that sole use of either waveform capnography or colorimetric testing is required for optimal care of the patient.