Interchangeable oxygen and carbon dioxide in oxygen cylinders

Oxygen and Carbon Dioxide Concentrations in Oxygen Tents.

Accuracy of oxygen and carbon dioxide electrodes.

Direct determinations of the oxygen tension (Po2) and carbon dioxide tension (Pco2) of arterial blood are now widely used in the diagnosis and management of diseases of the heart and lungs. Commercial electrode systems, based on the Clark oxygen cell (Clark, 1956), and the Severinghaus Pco2 electrode (Severinghaus and Bradley, 1958) are expensive items, and it is important to know the accuracy ...

Noninvasive monitoring of oxygen and carbon dioxide.

New technologies for the noninvasive assessment of oxygen and carbon dioxide are transforming clinical practice. Transcutaneous monitoring of PO2 (PtcO2) and PCO2 (PtCO2) provides an approximation of PaO2 and PaCO2 values in hemodynamically normal individuals, but both PtcO2 and PtcCO2 diverge from the corresponding arterial values when cardiac output is reduced, even in the absence of hypotens...

Oxygen Limitation and Carbon Dioxide Inhibition

The growth of meat-spoiling Pseudomonasfragi 72 was studied on a defined salt medium supplemented with L-aspartate, citrate, creatine, creatinine, D-glucose, L-glutamate, and L-lactate. The utilization of the different carbon sources was followed in batch and continuous culture and under the influence of oxygen limitation and carbon dioxide inhibition (50% CO2 in air). Under nonrestricted atmos...

Carbon dioxide and oxygen partial pressure in expiratory water condensate are equivalent to mixed expired carbon dioxide and oxygen.

This study was to determine whether the PCONCO2 and PCONO2 which collect in the expiratory trap of a ventilator circuit are equivalent to PECO2 and PEO2. Fifty studies were performed in 34 mechanically ventilated male patients. Five milliliters of condensate fluid were collected and PECO2 and PEO2 were measured. Exhaled gases were collected simultaneously with condensate fluid for 5 min in a me...