1995
DOI: 10.1378/chest.107.5.1406
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Failure in Measuring Gas Exchange in the ICU

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Cited by 20 publications
(5 citation statements)
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“…Clinical applications vary from the assessment of energy expenditure to the comprehensive analysis of ventilation and oxygen transport in critically ill patients. The accurate measurement of respiratory gas exchange in the critically ill mechanically ventilated patient poses several problems that include high-inspired oxygen concentrations, leaks resulting from positive airway pressures, and humidity [2,3,4,5,6,7].…”
Section: Introductionmentioning
confidence: 99%
“…Clinical applications vary from the assessment of energy expenditure to the comprehensive analysis of ventilation and oxygen transport in critically ill patients. The accurate measurement of respiratory gas exchange in the critically ill mechanically ventilated patient poses several problems that include high-inspired oxygen concentrations, leaks resulting from positive airway pressures, and humidity [2,3,4,5,6,7].…”
Section: Introductionmentioning
confidence: 99%
“…Important differences of 32 ± 2% (P<0.001) were detected between VO 2DELTA and VO 2 Fick values 7 . However, after rigorous reinspection of methods and equipment, the authors detected an internal leakage in the calorimeter.…”
Section: Resultsmentioning
confidence: 89%
“…However, at times T 2 and T 4 , the sionals in order to obtain adequate calorimetric measurements as well as several precautions, such as appropriate calibration of the equipment before each use, careful analysis of the results, and the periodic execution of in vitro tests with alcohol burning 7 .…”
Section: Resultsmentioning
confidence: 99%
“…50 A leak occurring from the mixing chamber of a DeltatracÔ has been described as a source of systematic error. 10 This emphasizes the need for regular calibration and servicing of devices to detect and correct machine error.…”
Section: Methodological Issues In Mechanically Ventilated Critically Ill Patientsmentioning
confidence: 99%