Table 5 Summary of add-on tests
From: Impact of add-on laboratory testing at an academic medical center: a five year retrospective study
| Total number of add-ons | 880,359 |
|---|---|
| Unique ordering instances1 | 443,411 |
| Number of patients | 96,244 |
| Average number of add-on tests per unique ordering instance | 1.99 |
| Average number of add-on tests per patient2 | 9.15 |
| Estimated hours per day of manual effort for add-on testing prior to introduction of robotic archival storage/retrieval unit | 30.7 |
| Estimated hours per day of manual effort for add-on testing with use of robotic archival storage/retrieval unit | 6.6 |