ALKAPTONURIA URINE, QUALITATIVE

You should get a qualitative alkaptonuria urine test if your or your child's urine turns dark brown or black on standing, or diapers show dark stains. It is also recommended for bluish-black discoloration of the ears or eyes, early-onset arthritis of the spine or large joints, or a family history of alkaptonuria.

Collect a fresh, clean urine sample, preferably the first morning sample, in a sterile container, and deliver it to the lab promptly. Follow your usual diet. Inform your doctor about any medicines or vitamin C supplements, as they may interfere with results.

No, fasting is not required for a qualitative alkaptonuria urine test. You can eat and drink normally before giving your sample. Collect a fresh, clean urine sample, preferably in the morning, and deliver it to the lab promptly. Inform your doctor about any vitamin C supplements, as they may affect results.