Aminoaciduria is an abnormal amount of amino acids in the urine. Amino acids are the building blocks for proteins in the body.

This article discusses the test used to look for increased amounts of amino acids in the urine.

See also:

• Amino acids blood test
• Inborn errors of metabolism

A clean-catch urine sample is needed. This is often done at your doctor's office or health clinic.

No special preparations are necessary. Make sure your doctor knows about all the medicines you or your child are taking or have recently used. If this test is being done on an infant who is breast-feeding, make sure the health care provider knows what medicines the nursing mother is taking.

The test involves only normal urination.