Serum enzyme levels in anaesthetic personnel.

The reported studies were carried out on 22 persons, 15 anaesthetists and 7 anaesthetic nurses with a history of long-term exposure to halothane in low concentrations. The activity of gamma-glutamyl-transpeptidase (GGTP) and aminotransferases, the level of bilirubin and thymol turbidity test were determined. No significant abnormalities were found in the mean values of these determinations. In some cases a rise in alkaline phosphatase activity and in two cases a rise of GGTP were found. The results are not suggesting the presence of hepatocellular damage in this group.