Suitability of Nonin Models 8500 and 9500 Pulse Oximeters, and Model 9847 Pulse Oximeter, and Carbon Dioxide Detector for Use in Hyperbaric Chambers

摘要

Pulse oximetry has proven to be a valuable clinical monitor of respiratory adequacy in many healthcare settings. It is considered to be " standard of care" in many critical care settings such as operating rooms, intensive care units, and procedure rooms where sedation is administered. Although most patients in hyperbaric chamoers are well oxygenated by virtue of the fact that they are breathing oxygen at hyperbaric pressures, some situations could result in hypoxemia, such as airway compromise, pneumothorax, aspiration pneumonitis or pulmonary edema. Therefore, a simple, rapid, noninvasive means of determining arterial oxygen saturation would be valuable. Pulse oximetry offers these advantages if the instrument is shown to be suitable for use in the hyperbaric environment. Additionally, measurement of expired carbon dioxide can serve as a valuable means of assessing adequacy of ventilation and verification of placement of airway devices. The Model 984" incorporates both a ulse oximeter and infrared carbon dioxide analyzer into one com act unit.