Articles on Medical Diseases and Conditions

There are now several ways to measure carbon dioxide and oxygen in blood without drawing a blood sample. The two most popular methods at present are transcutaneous electrode systems and pulse oximetry. Both systems can provide continuous readings. The transcutaneous systems use PCO2 and PO2 electrodes similar to those of standard arterial blood gas analysis […]

The greatest stimulus for arterial as opposed to venous specimens for blood gas studies is to obtain measurement of blood oxygen. The usual information reported is PO2 (concentration of O2 gas measured in mm of Hg or Torr), obtained with a direct-reading PO2 electrode. PO2 represents the dissolved oxygen content of plasma, analogous to the […]