Abnormal urine colors may reflect which of the following?

• A. Hydration, medications, foods, or pathology such as blood or infection
• B. Hydration status only
• C. Medications only
• D. Foods only

Answer: (A)

Urine color can be influenced by several different factors, not just one. Hydration status changes how concentrated urine is: well-hydrated urine tends to be pale yellow, while dehydration makes it darker amber. Medications can also tint urine in various colors, such as orange, red, brown, or blue, depending on the drug. Foods with strong pigments, like beets, asparagus, or certain vitamins, can color urine or alter its odor. Finally, pathology can cause color changes too—blood in the urine (hematuria) can make it pink, red, or brown, and infections or other abnormalities can alter the hue as well. Because any of these factors can produce abnormal colors, recognizing that hydration, medications, foods, and pathology all can contribute helps explain why urine color may deviate from the norm.