Final answer:
The presence of both tyrosine and leucine crystals in urine sediment usually indicates Hartnup disease, a rare genetic disorder that impairs the absorption of amino acids. This can lead to various symptoms and requires further medical evaluation and treatment. The correct option is D.
Step-by-step explanation:
The presence of both tyrosine and leucine crystals in urine sediment usually indicates Hartnup disease. Hartnup disease is a rare genetic disorder that impairs the absorption of amino acids, including tyrosine and leucine, in the intestines and kidneys. As a result, these amino acids can accumulate in the urine and form crystals.
Tyrosine and leucine are both essential amino acids, meaning the body cannot produce them and they must be obtained from the diet. In Hartnup disease, the impaired absorption of these amino acids can lead to various symptoms, including skin rashes, neurological problems, and psychiatric disorders.
To confirm a diagnosis of Hartnup disease, further medical evaluation, including genetic testing, is necessary. Treatment typically involves dietary modifications and supplementation with specific amino acids. The correct option is D.