SUMMARY The effect of fresh gas tlow on PaCo2, was studied on 15 children who given general anesthesia for surgery. Each patient was his/her own control Arterial blood samples were drawn to measure PaCo2. First sample was taken 15 minutes and the second sample 30 minutes after the patient was anesthetised. Gas flow increased by 500 ml, and the 3rd sample taken after 15 minutes. The mean PaCo2...

The concentrations of 02 and CO2 in tissues (i.e., the extracellular tissue spaces) can be an index to the relationship between the blood flow and metabolism of an organ. Since the optimal performance of an organ is expected to occur between definable limits of the tissue 02 and CO2 tensions (1, 2), correct values for these gas tensions delineate the most suitable relationship between flow and ...

Forensic pathologists have long recognised that the process of decomposition causes gas formation. Bacteria proliferate in the dead body, particularly in the blood vessels, breaking down blood and tissues and generating gas in a process of putrefaction. If decomposition was responsible for the intravascular gas then this gas should also be seen in non-diving fatalities. Resuscitation, using end...

The binding and buffering of O2 and CO2 in the blood influence their exchange in lung and tissues and their transport through the circulation. To investigate the binding and buffering effects, a model of blood-tissue gas exchange is used. The model accounts for hemoglobin saturation, the simultaneous binding of O2, CO2, H+, 2,3-DPG to hemoglobin, and temperature effects. Invertible Hill-type sa...