Isoleucine, an essential amino acid, plays a vital role in various biological functions including protein synthesis, tissue repair, and energy regulation. Like other essential amino acids, isoleucine cannot be synthesized by the body and must be obtained through dietary sources. The Isoleucine - Quantitative Urine 24 Hr test measures the levels of isoleucine in the urine over a 24-hour period. This test can help healthcare providers assess and diagnose disorders related to the metabolism of amino acids such as isoleucine.
Elevated levels of isoleucine in urine can indicate a condition called maple syrup urine disease (MSUD), a rare metabolic disorder that affects the body's ability to process certain amino acids. This test is particularly important for newborns, infants, or individuals showing symptoms of poor feeding, developmental delays, or other signs related to the improper metabolism of amino acids.
Test NameIsoleucine - Quantitative Urine 24 Hr
Sample TypeUrine
Preparations RequiredNo fasting is required prior to sample collection, but ensure to collect urine over a 24-hour period for accurate results.
Report Time4 Days
Why is the Isoleucine - Quantitative Urine 24 Hr test done?
The test is done to check for elevated levels of isoleucine which could indicate a metabolic disorder like maple syrup urine disease. It can also be used to monitor the effectiveness of treatment in patients diagnosed with these conditions.
What preparation is required for the Isoleucine - Quantitative Urine 24 Hr test?
No specific preparation is needed, but it's important to collect urine over a full 24-hour period for the most accurate results.
Home Sample Collection Process
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Book your convenient slot
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Sample Collection by Phlebotomist
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Reporting of the sample at lab
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Download Reports
Frequently Asked Questions
High isoleucine levels could suggest a metabolic disorder, such as maple syrup urine disease, which prevents your body from properly processing certain amino acids.
The normal range can vary between laboratories. Please consult your healthcare provider for your specific range.
Newborns, infants, or individuals showing symptoms of poor feeding, developmental delays, or other signs related to the improper metabolism of amino acids should undergo this test. It can also be helpful for individuals with a family history of metabolic disorders.
Yes, since isoleucine is obtained through diet, a diet low in isoleucine may result in lower urine levels.
Various factors such as diet, metabolic disorders, kidney diseases, and certain medications can affect isoleucine levels in your urine.
If your isoleucine levels are abnormal, you should consult with a metabolic specialist or a geneticist who specializes in metabolic disorders.
The test requires a urine sample, so there should be no pain associated with this test.
The frequency of testing depends on the individual's health status, age, and other factors. Your healthcare provider can best guide you.
The urine sample is collected over a 24-hour period. You will be provided with a special container to collect the urine, and it's important to follow the given instructions to ensure an accurate result.
Yes, drinking water is allowed before the test. Staying hydrated can make it easier to provide a urine sample.
If your isoleucine levels are high, it's important to consult with your healthcare provider who will advise the next steps, which may include further testing, dietary adjustments, or medical treatment.
The collection of the urine sample can be done at home, but the testing process must be performed in a laboratory.
There are no significant risks associated with this test as it only involves the collection of a urine sample.
The test is highly reliable when the urine sample is properly collected and the test is performed in a certified laboratory.
Depending on your symptoms or medical history, your healthcare provider might also order other tests related to metabolic function or specific genetic tests for better diagnosis.
Isoleucine levels can vary slightly throughout the day but a 24-hour urine test should provide a reliable measure of your average isoleucine levels.
Understanding your body's metabolism of essential amino acids like isoleucine can offer valuable insights into your overall health. If you're experiencing symptoms suggestive of a metabolic disorder, don't hesitate to speak with a healthcare professional about your concerns. Early detection and management of such conditions can greatly enhance health outcomes and quality of life.
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