&lt;h2&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;Overview&lt;/strong&gt;&lt;/span&gt;&lt;/h2&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Catecholamine fractionation, free, 24-hour urine test, is a diagnostic procedure used to measure the levels of catecholamines, which include dopamine, adrenaline (epinephrine), and noradrenaline (norepinephrine), in a person&#39;s urine over a 24-hour period. This test provides valuable information about the functioning of the adrenal glands and the sympathetic nervous system.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;By analyzing the levels of these neurotransmitters, healthcare providers can assess conditions such as pheochromocytoma, neuroblastoma, and certain types of autonomic nervous system disorders. The test involves collecting all urine produced over a 24-hour period and then analyzing it for catecholamine levels. This information helps in diagnosing and monitoring various medical conditions related to catecholamine imbalance.&lt;/span&gt;&lt;/p&gt;
&lt;hr /&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;h3&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;WHAT IS IT USED FOR?&lt;/strong&gt;&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;- An additional assessment aiding in the diagnosis of pheochromocytoma and paraganglioma, alongside fractionated plasma and urine metanephrine measurements.&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;color: #808080;&quot;&gt;- An additional evaluation for diagnosing and monitoring patients with neuroblastoma and similar tumors, complementing urine vanillylmandelic acid and homovanillic acid analysis.&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;color: #808080;&quot;&gt;- This test is not recommended as the primary diagnostic method for pheochromocytoma.&lt;/span&gt;&lt;/p&gt;
&lt;div class=&quot;w-full pt-2 md:pt-0 dark:border-white/20 md:border-transparent md:dark:border-transparent md:w-[calc(100%-.5rem)]&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;h3&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;METHOD NAME&lt;br /&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)&lt;/span&gt;&lt;/p&gt;
&lt;h3&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;&lt;br /&gt;AVAILABILITY&lt;/strong&gt;&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;TBC&lt;/span&gt;&lt;/p&gt;
&lt;h3&gt;&amp;nbsp;&lt;/h3&gt;
&lt;h3&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;REPORTING NAME&lt;/strong&gt;&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Catecholamine Fract, Free, U&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;h3&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;OTHER NAME&lt;/strong&gt;&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Adrenaline&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Catecholamine Fractionation, Urine&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Catecholamines, 24-Hour Urine&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Catecholamines, Total&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Catecholamines, Urine&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Dopamine&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Epinephrine&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Noradrenaline&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Norepinephrine&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Pressor Amines&lt;/span&gt;&lt;/p&gt;

&lt;h3 id=&quot;SpecimenType-title&quot;&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;SPECIMEN TYPE&lt;/strong&gt;&amp;nbsp;&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Urine&lt;/span&gt;&lt;/p&gt;
&lt;h3&gt;&amp;nbsp;&lt;/h3&gt;
&lt;h3&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;SHIPPING INSTRUCTIONS&lt;br /&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;TBC&lt;/span&gt;&lt;/p&gt;
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&lt;h3&gt;&amp;nbsp;&lt;/h3&gt;
&lt;h3&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;SPECIMEN COLLECTION&lt;/strong&gt;&lt;/span&gt;&lt;/h3&gt;
&lt;p style=&quot;font-weight: 400;&quot;&gt;&lt;span style=&quot;color: #808080;&quot;&gt;&lt;strong&gt;Patient Preparation:&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;1. Discontinue drugs that release or hinder the metabolism of epinephrine, norepinephrine, or dopamine for at least 1 week before specimen collection (see&amp;nbsp;Cautions for details). If this is not possible for medical reasons, contact the laboratory to discuss whether a shorter drug-withdrawal period may be acceptable.&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;color: #808080;&quot;&gt;2. Unless the reason for testing is drug monitoring, discontinue any epinephrine, norepinephrine, or dopamine injections or infusions for at least 12 hours before specimen collection.&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;font-weight: 400;&quot;&gt;&lt;span style=&quot;color: #808080;&quot;&gt;&lt;strong&gt;Supplies:&lt;/strong&gt;&amp;nbsp;Sarstedt Aliquot Tube, 5 mL&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;font-weight: 400;&quot;&gt;&lt;span style=&quot;color: #808080;&quot;&gt;&lt;strong&gt;Collection Container:&amp;nbsp;&lt;/strong&gt;Plastic vial&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;font-weight: 400;&quot;&gt;&lt;span style=&quot;color: #808080;&quot;&gt;&lt;strong&gt;Specimen Volume:&lt;/strong&gt;&amp;nbsp;2&amp;nbsp;mL&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;font-weight: 400;&quot;&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;Collection Instructions:&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;1. Collect urine for 24 hours.&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;color: #808080;&quot;&gt;2. Add 25 mL of 50% acetic acid as a preservative at the start of collection. Use 15 mL of 50% acetic acid for children less than 5 years old. This preservative is intended to achieve a pH of between approximately 2 and 4.&lt;/span&gt;&lt;/p&gt;
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Catecholamine Fractionation, Free, 24 Hour, Urine