Further tests, such as blood tests, may be needed to confirm the suspected disorder. This disorder can cause severe mental retardation in the first year of life, which can be prevented with treatment. In the US, babies are screened for this disorder at birth. This allows the earliest possible detection and treatment. This is a fairly common disorder that causes few health problems.
Affected people are more likely to form kidney stones.
This disorder may cause brain damage when untreated. However, appropriate treatment with vitamins can prevent problems. There are many other rare inherited disorders that can cause abnormal test results. Other diseases of the kidney can also cause abnormal test results. Results should be discussed with the healthcare provider.