Abstract
An O2 electrode system, supplied as an attachment to the Radiometer Astrup micro equipment for blood pH determination (AME 1), has been investigated. Determination of blood O2 tension using an established Bishop type O2 electrode and satisfactory agreement was found. The storage of blood for routine estimation of O2 tension has been investigated. Capillary blood O2 tension has been measured and compared with that of simultaneously taken arterial blood samples.