Table 1.

Clinical Problems and Associated Tests Used in the Trial

Clinical ProblemsTests
BUN = blood urea nitrogen; ECG = electrocardiogram; ALT = alanine aminotransferase; AST = aspartate aminotransferase; LDH = lactic dehydrogenase.
*Tests that are inappropriate according to national evidence-based guidelines on upper abdominal complaints (see Supplemental Appendix).
Cardiovascular conditionsCholesterol, subfractions, potassium, sodium, creatinine, BUN, ECG (exercise)
Lower abdominal complaintsProstate-specific antigen, C-reactive protein, ultrasound scan of the kidney, intravenous pyelogram, double-contrast barium enema, sigmoidoscopy
Upper abdominal complaintsALT, AST,* LDH*, amylase,* γ-glutamyltrans- ferase, bilirubin,* alkaline phosphatase,* ultrasound scan of hepatobiliary tract