All of the following are considered abnormal findings in a dipstick urinalysis except __ Multiple Choice

\[ \textbf{Step 1: Understanding the Dipstick Urinalysis Parameters} \] Dipstick urinalysis typically screens for several substances in the urine. Common parameters include: - \(\text{Protein}\) - \(\text{Blood}\) (hemoglobin) - \(\text{Glucose}\) - \(\text{Ketones}\) - \(\text{Bilirubin}\) - \(\text{Nitrite}\) - \(\text{Leukocyte esterase}\) - \(\text{Urobilinogen}\) \[ \textbf{Step 2: Identifying Which Findings Are Abnormal} \] For most of these tests, the expected or normal finding in a healthy individual is “negative” (or zero). For instance: - A positive test for \(\text{protein}\) suggests proteinuria. - A positive \(\text{blood}\) (hematuria) is abnormal. - The presence of \(\text{glucose}\) suggests glycosuria. - A positive \(\text{ketone}\) test suggests stress, starvation, or diabetic ketoacidosis. - A positive \(\text{bilirubin}\) test indicates possible liver or biliary pathology. - A positive \(\text{nitrite}\) indicates bacterial contamination. - A positive \(\text{leukocyte esterase}\) indicates the presence of white blood cells, commonly seen with infection. \[ \textbf{Step 3: The Exception – Urobilinogen} \] Unlike the others, the presence of trace amounts of \(\text{urobilinogen}\) in urine is normally expected. Although abnormally high or low levels can indicate liver or hemolytic disease, a low to moderate positive reading for urobilinogen is considered a normal finding. \[ \textbf{Step 4: Conclusion} \] Thus, among the choices provided, all represent abnormal findings on a dipstick urinalysis except for the presence of \(\text{urobilinogen}\) (when within the normal range). \[ \boxed{\text{Urobilinogen}} \]