Abstract
The productivity of a clinical chemistry laboratory was measured in both a Canadian and a British tertiary care teaching hospital using 1977 data and the 1976 edition of the Canadian Schedule of Unit Values. Although productivity, measured as units produced per person or per paid hour, was lower in the British than in the Canadian teaching hospital, due to the British day release system of staff-education, the output per actual worked hour was similar. Productivity in the laboratory services of the British National Health Service is not likely to be different from laboratory productivity elsewhere.