RT Journal Article SR Electronic T1 Measurement of arterial and capillary blood oxygen tension JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 357 OP 363 DO 10.1136/jcp.19.4.357 VO 19 IS 4 A1 Johnstone, J. H. YR 1966 UL http://jcp.bmj.com/content/19/4/357.abstract AB An oxygen electrode system, supplied as an attachment to the Radiometer Astrup micro equipment for blood pH determination (AME I), has been investigated. Determination of blood oxygen tension using this electrode system has been compared with tension measurements using an established Bishop type oxygen electrode and satisfactory agreement was found. The storage of blood for routine estimation of oxygen tension has been investigated. Capillary blood oxygen tension has been measured and compared with that of simultaneously taken arterial blood samples.