The partial pressure of oxygen is the pressure exerted by gaseous oxygen in the blood and is measured either in kilopascals (kPa) or millimeters of mercury (mmHg). The higher the partial pressure of oxygen (pO2) in the blood, the higher the oxygen saturation. This relationship is not linear...
It has, however, become common practice to use arterial instead of alveolar CO2 tension for computing alveolar oxygen tension (PAO2) and physiological dead space, not only in normal subjects but also in patients. The purpose of this study was to estimate alveolar CO2 tension during spontaneous ...
You wrote in the manuscript: The PaO2 values obtained from the ABG samples will be compared to the peripheral oxygen saturation (SpO2), which will be used as a continuous guide. Comment: the SpO2 is a very poor guide for PaO2 above 10-15kPa. Even with a PaO2 of 10kPa th...
With 57, 43, and 19% remaining lungs managcd on convcntional MV, a11 shccp in group I were weaned to room air [Pao: 2 6.7 kPa (50 nlm Hg), normal Paco.1 within 3-46 h aftcr end of surgcry. All four group 2 sliccp \vith 12.5% of lungs remaining \vcrc weaned to room ...
PaO2 less than 50 mm Hg or PaCO2 greater than 50 mm Hg A person with normal lungs at sea level (760 mmHg) is breathing 50% oxygen. What is the approximate alveolar PO2? When the lungs are compressed or deflated, a/an ___ rate o...
METHODS: Ten normal volunteers were recruited from the research staff of King's College Hospital Six patients with COPD and hypoxia (arterial oxygen tension (PaO2) < 8.5 kPa) were recruited from the thoracic medicine outpatient clinic at King's College Hospital and five age and sex matched ...
It has, however, become common practice to use arterial instead of alveolar CO2 tension for computing alveolar oxygen tension (PAO2) and physiological dead space, not only in normal subjects but also in patients. The purpose of this study was to estimate alveolar CO2 tension during spontaneous ...