
Every day in the practice of medicine, hundreds of thousands of urine samples are tested. The maxim that states “all females between ages 10 and 60 with abdominal pain must have a urine pregnancy test” has been ingrained into our cerebral cortexes. Since the times of ancient medicine, the urinalysis has been used to screen for a host of diseases. The urinalysis is a vital tool in evaluating patients. However, as helpful as it is, it has also led many clinicians down the wrong path towards chaos. Two different cognitive medical errors come to mind when interpreting the urinalysis.