An abnormal urinalysis may indicate disease of which organ of the body?

• A. Liver
• B. Kidneys
• C. Bladder
• D. All of the above

Answer: (D)

An abnormal urinalysis can point to problems in multiple organs because urine reflects more than just one system. Kidney function directly shapes urine composition, so findings like proteinuria or hematuria often signal kidney injury or disease. The bladder and urinary tract can also contribute abnormalities such as infection indicators (nitrites, leukocyte esterase) or blood, which point to bladder or urethral involvement. Liver or biliary tract issues can alter urine with bilirubin or changes in urobilinogen, reflecting hepatic processing of bilirubin. Because abnormalities can arise from the kidneys, the bladder/urinary tract, or the liver, the most accurate choice is all of the above.