title: Errors in fuel cell oxygen analysers during NEEP.
abstract: A fuel cell oxygen analyser was found to underread during the application of negative end-expiratory pressure. Further investigation revealed that air leaks into the analyser head through the plastic housing and causes the analyser to read low. A remedy is suggested.
mesh_terms: D010100:Oxygen / Q000032:analysis*; D012121:Respiration, Artificial / Q000295:instrumentation*; D012449:Safety
chemical_list: D010100:Oxygen