Table 13:
Identifying IV Infusions: Performance Metrics and Analysis
| Performance Metrics and Analysis | Pump Identification Error | Line-Tracing Error | |
|---|---|---|---|
| Infusion Disconnection Taska | Infusion Disconnection Taska | Infusion Documentation Task | |
| Definition | Stop wrong pump | Disconnect wrong IV tubing (of identified pump) | Identify wrong access port |
| Identify wrong infusion (x 3) connected to identified access port | |||
| Performance metric (per participant per condition) | Pass or fail | Pass or fail | Number of line-tracing errors (maximum of 4)b |
| Analysis | |||
| Number of participants included in analysis | 40 | 40 | 39c |
| Opportunities for error per condition | 40 (1 error per disconnection task; 1 disconnection task per participant per condition) | 40 (1 error per disconnection task; 1 disconnection tasks per participant per condition) | 156 (4 errors per documentation task; 1 documentation task per participant per condition) |
| Statistical test (performance metric as a function of experimental condition) | Cochran's Q test followed by pairwise comparisons between the different combinations of intervention conditions by use of the McNemar χ2 test with Bonferroni correction | NA (statistical analysis not conducted, since no errors were made across all conditions) | One-way ANOVA test followed by post hoc paired sample t-test comparisons using Bonferroni correction |
Abbreviations: ANOVA, analysis of variance; IV, intravenous; NA, not applicable.
a
In the infusion disconnection task, there was the potential for 2 errors: identifying/stopping the wrong pump and tracing the infusion to the wrong patient access port/disconnecting the wrong infusion.
b
In the infusion documentation task, there was the potential for 4 line-tracing errors: identifying the wrong access port and connected infusions (3 times).
c
One participant (of 40) could not complete the documentation task with the light-linking system because of technical difficulties.