Number and laboratory costs of gamma-glutamyltransferase and uric acid requests before and after the intervention
| Baseline data | Intervention | Postintervention data | ||||
| November 2020 | December 2020 | February 2021 | March 2021 | August 2021 | ||
| Uric acid | 115 | 149 | 6 | 3 | 6 | |
| Gamma-glutamyltransferase | 155 | 228 | 69 | 85 | 62 | |
| Cost of laboratory testing | £452.05 | £631.08 | £125.31 | £146.99 | £113.62 | |
Following this simple intervention, the annual cost saving for the Trust could be between £4000 and £6000.