Introduction
In March 2017 the Princess Alexandra Hospital (PAH) commenced inpatient electronic prescribing (e-prescribing) within the pre-existing electronic medical record. Numerous studies have shown a reduction in medication errors with use of e-prescribing systems1. Systematic reviews of prescribing efficiency have also found increased time spent using e-prescribing compared with paper based medication charts2. There is no published data on the effect of e-prescribing systems on the efficiency of inpatient insulin prescribing.
Aim
To evaluate the time taken to access and analyse the insulin/glucose chart and prescribe insulin before and after the implementation of e-prescribing system at the PAH.
Method
Three doctors (two registrars and a resident) independently reviewed the insulin/glucose chart of 20 inpatients at PAH at three time points; before implementation of e-prescribing and at one and six weeks after implementation of e-prescribing system. The time taken to access and analyse the insulin/glucose chart and prescribe insulin was self reported.
Results
The total time to access and analyse the insulin/glucose chart and prescribe insulin was significantly longer at 1 week and 6 weeks post implementation of the e-prescribing system (146 vs 274 vs 210 seconds, p <0.0001). The significant difference was maintained irrespective of degree of glycaemic control or complexity of insulin regimen. Each doctor improved from week 1 to week 6 post e-prescribing but remained significantly slower than before the e-prescribing system.
Conclusion
There is evidence that e-prescribing reduces errors compared to paper based medication charts. Early experience, however, shows that electronic prescribing systems increase the time taken to analyse the insulin/glucose chart and prescribe insulin. Further assessment will be undertaken to determine the degree of efficiency improvement achieved with more e-prescribing experience and also to assess insulin prescribing safety.