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</div><div><span>Aminoaciduria</span></div></div>
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</noscript></div><div class="main"><div id="ency_summary"><p>Aminoaciduria is an abnormally high amount of amino acids in the urine. Amino acids are the building blocks for proteins in the body.</p></div><section><div class="section"><div class="section-header"><div class="section-title"><h2>How the Test is Performed</h2></div><div class="section-button"><button type="submit" aria-controls="section-1" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-1"><p>A <a test="test" href="./003751.htm">clean-catch urine sample</a> may be needed. This is often done at your health care provider's office or health clinic.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>How to Prepare for the Test</h2></div><div class="section-button"><button type="submit" aria-controls="section-2" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-2"><p>Most of the time, you do not need to take special steps before this test. Make sure your provider knows all of the medicines you recently used. If this test is being done on an infant who is breastfeeding, make sure the provider knows what medicines the nursing mother is taking.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>How the Test will Feel</h2></div><div class="section-button"><button type="submit" aria-controls="section-3" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-3"><p>The test involves only normal urination.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Why the Test is Performed</h2></div><div class="section-button"><button type="submit" aria-controls="section-4" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-4"><p>This test is done to measure amino acid levels in the urine. There are many different types of amino acids. It is common for some of each kind to be found in the urine. Increased levels of individual amino acids can be a sign of a problem with metabolism.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Normal Results</h2></div><div class="section-button"><button type="submit" aria-controls="section-5" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-5"><p>The specific value is measured in mmol/mol creatinine. The values below represent normal ranges in 24 hours urine for adults.</p><p>Alanine: 9 to 98</p><p>Arginine: 0 to 8</p><p>Asparagine: 10 to 65</p><p><a test="test" href="./002234.htm">Aspartic acid</a>: 5 to 50</p><p>Citrulline: 1 to 22</p><p>Cystine: 2 to 12</p><p>Glutamic acid: 0 to 21</p><p>Glutamine: 11 to 42</p><p>Glycine: 17 to 146</p><p>Histidine: 49 to 413</p><p>Isoleucine: 30 to 186</p><p>Leucine: 1 to 9</p><p>Lysine: 2 to 16</p><p>Methionine: 2 to 53</p><p>Ornithine: 1 to 5</p><p><a test="test" href="./003362.htm">Phenylalanine</a>: 1 to 5</p><p>Proline: 3 to 13</p><p>Serine: 0 to 9</p><p>Taurine: 18 to 89</p><p>Threonine: 13 to 587</p><p>Tyrosine: 3 to 14</p><p>Valine: 3 to 36</p><p>Normal value ranges may vary slightly among different laboratories. Talk to your provider about the meaning of your specific test results.</p><p>The examples above show the common measurements for results for these tests. Some laboratories use different measurements or may test different specimens.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>What Abnormal Results Mean</h2></div><div class="section-button"><button type="submit" aria-controls="section-6" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-6"><p>Increased total urine amino acids may be due to:</p><ul><li>Alkaptonuria</li><li>Canavan disease</li><li>Cystinosis</li><li>Cystathioninuria</li><li>Fructose intolerance</li><li><a test="test" href="./000366.htm">Galactosemia</a></li><li>Hartnup disease</li><li>Homocystinuria</li><li>Hyperammonemia</li><li><a test="test" href="./001215.htm">Hyperparathyroidism</a></li><li>Maple syrup urine disease</li><li><a test="test" href="./001162.htm">Methylmalonic acidemia</a></li><li><a test="test" href="./000583.htm">Multiple myeloma</a></li><li>Ornithine transcarbamylase deficiency</li><li><a test="test" href="./000376.htm">Osteomalacia</a></li><li>Propionic acidemia</li><li><a test="test" href="./000344.htm">Rickets</a></li><li>Tyrosinemia type 1</li><li>Tyrosinemia type 2</li><li>Viral <a test="test" href="./001154.htm">hepatitis</a></li><li><a test="test" href="./000785.htm">Wilson disease</a></li></ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Considerations</h2></div><div class="section-button"><button type="submit" aria-controls="section-7" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-7"><p>Screening infants for increased levels of amino acids can help detect problems with metabolism. Early treatment for these conditions may prevent complications in the future.</p></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>Alternative Names</h2></div><div class="section-button"><button type="submit" aria-controls="section-Alt" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Alt"><p>Amino acids - urine; Urine amino acids</p></div></div></section><section><div class="section sec-mb"><div class="section-header"><div class="section-title"><h2>Images</h2></div><div class="section-button"><button type="submit" aria-controls="section-tnails" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<li><img src="//medlineplus.gov/ency/images/ency/tnails/8603t.jpg" alt="Aminoaciduria urine test" title="Aminoaciduria urine test" class="side-img"/><a href="../imagepages/8603.htm">Aminoaciduria urine test</a></li>
</ul></div></div></section><section><div class="section"><div class="section-header"><div class="section-title"><h2>References</h2></div><div class="section-button"><button type="submit" aria-controls="section-Ref" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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</div></div><div class="section-body" id="section-Ref"><p>Dietzen DJ, Willrich MAV. Amino acids, peptides, and proteins. In: Rifai N, Chiu RWK, Young I, Burnham Carey-Ann D, Wittwer CT, eds. <em>Tietz Textbook of Laboratory Medicine</em>. 7th ed. St Louis, MO: Elsevier; 2023:chap 31.</p><p>Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM. Defects in metabolism of amino acids. In: Kliegman RM, St. Geme JW, Blum NJ, Shah SS, Tasker RC, Wilson KM, eds. <em>Nelson Textbook of Pediatrics</em>. 21st ed. Philadelphia, PA: Elsevier; 2020:chap 103.</p><p>Riley RS, McPherson RA. Basic examination of urine. In: McPherson RA, Pincus MR, eds. <em>Henry's Clinical Diagnosis and Management by Laboratory Methods</em>. 24th ed. Elsevier; 2022:chap 29.</p></div></div></section>
<section><div class="section"><div class="section-header"><div class="section-title"><h2>Review Date 4/24/2023</h2></div><div class="section-button"><button type="submit" aria-controls="section-version" role="button" title="Expand/Collapse section"><span class="icon icon-section-action">
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<div id="section-version" class="section-body"><p>Updated by: Anna C. Edens Hurst, MD, MS, Associate Professor in Medical Genetics, The University of Alabama at Birmingham, Birmingham, AL. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. </p>
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