In a fasting urine sample, which of the following is considered an abnormal finding in the urine?

1. In normal physiology, the kidney reabsorbs nearly all of the \( \text{glucose} \) filtered by the glomeruli. 2. When a urine sample is obtained during fasting, the blood glucose level is maintained in a normal range, so there is no exceeding of the renal tubular maximum for glucose reabsorption. 3. Therefore, under normal conditions a fasting urine sample should not contain detectable \( \text{glucose} \). 4. The presence of \( \text{glucose} \) in urine (glycosuria) is abnormal and may indicate metabolic disturbances such as uncontrolled diabetes mellitus or a defect in tubular reabsorption. Thus, an abnormal finding in a fasting urine sample is the presence of \( \textbf{glucose} \) in the urine.