John Severinghaus, who recently turned 80, is one of the pioneers in the field of blood gas. To celebrate his birthday, bloodgas.org has asked him to look back on the first developments leading to the modern blood gas analyzers. The following article has also been published in Anesthesiology, The Journal of the...

The possibility of continuously monitoring arterial blood oxygen and carbon dioxide using heated surface electrodes on human skin was discovered in the early 1970s and made commercially available by 1976.  These devices were applied initially to premature infants in an effort to reduce the incidence of blindness due...