Evaluation of the Use of Capnography during the Transport of Critically IllMechanically Ventilated Patients

摘要

Critically ill, mechanically ventilated, patients were monitored with manometry,spirometry, and capnography during intrahospital transport out of the ICU. Patients functioned as their own control, and medical personnel were 'blinded' to capnography for 50% of the transport time. During the 'blinded' time, all patients developed a respiratory acidosis. Use of the non-invasive monitor, the capnograph prevented this adverse effect and resulted in improved patient safety. The study also revealed that the percentage of 'dead space' did not increase during transport, and that rebreathing of exhaled carbon dioxide was a frequent event with the use of the Jackson-Rees breathing circuit.