Table 3 Most frequently ordered individual add-on tests
From: Impact of add-on laboratory testing at an academic medical center: a five year retrospective study
Test | % of Total Add-on Orders | % of Times Test Ordered as Add-on (vs. Routine) |
|---|---|---|
Magnesium | 4.0 | 5.9 |
Albumin | 3.8 | 6.5 |
Alanine aminotransferase | 3.8 | 5.4 |
Aspartate aminotransferase | 3.8 | 5.5 |
Bilirubin, total | 3.7 | 6.4 |
Alkaline phosphatase | 3.4 | 5.8 |
Gamma-glutamyltransferase | 3.2 | 4.7 |
Total protein | 3.1 | 6.3 |
Phosphorus | 3.0 | 6.9 |
Troponin T | 2.2 | 14.5 |
Complete blood count | 2.1 | 1.5 |
Automated white blood cell differential | 2.1 | 2.3 |
Creatinine | 1.7 | 1.1 |
Potassium | 1.6 | 1.1 |
Thyroid stimulating hormone with reflex to free thyroxine | 1.6 | 9.6 |
Lipase | 1.6 | 15.9 |
Hemoglobin A1C | 1.5 | 10.2 |
Prothrombin time/International normalized ratio | 1.5 | 1.8 |
Basic metabolic panel with calcium | 1.5 | 1.1 |
C-Reactive protein | 1.4 | 8.1 |
Lactic acid dehydrogenase | 1.4 | 10.7 |
Creatine kinase, total | 1.3 | 22.7 |
Amylase | 1.3 | 15.3 |
Blood urea nitrogen | 1.3 | 0.9 |
Calcium, total | 1.2 | 1.3 |