Monitoring Inspired Oxygen Pressures During Mechanical Ventilation
1968; American Medical Association; Volume: 206; Issue: 13 Linguagem: Inglês
10.1001/jama.1968.03150130043011
ISSN1538-3598
Autores Tópico(s)Mechanical Circulatory Support Devices
ResumoVentilators which provide a 40% mixture of oxygen with air are commonly employed in the management of respiratory failure. When set on air mix and powered by compressed-oxygen sources, the ventilators may deliver high and unpredictable partial pressures of oxygen. Measurement of inspired partial pressures of oxygen (PIO 2 ) is important in identifying patients receiving excessive oxygen concentrations, and in monitoring patients in respiratory failure. The technique for sampling and measuring the PIO 2 is exceedingly simple and reliable. The difference between the partial pressure of oxygen in the inspired gas and the partial pressure of oxygen in the arterial blood is an approximate indicator of the effective oxygen transport in the lungs.
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