&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;Urea is the primary breakdown product of protein and amino acid metabolism in the body, synthesized in the liver from ammonia generated during protein catabolism. Elevated blood urea nitrogen (BUN) levels can result from various factors including prerenal, renal, and postrenal causes. BUN determination is a commonly used screening test for kidney function, often conducted alongside serum creatinine testing to assist in diagnosing different types of hyperuricemia.&lt;/span&gt;&lt;/p&gt;
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&lt;h2&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;WHAT IS IT USED FOR?&lt;/strong&gt;&lt;/span&gt;&lt;/h2&gt;
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&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Evaluation of kidney function screening test&lt;/span&gt;&lt;/p&gt;
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&lt;h2&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;METHOD NAME&lt;br /&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/h2&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Photometric/Urease&lt;/span&gt;&lt;/p&gt;
&lt;h2&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;AVAILABILITY&lt;/strong&gt;&lt;/span&gt;&lt;/h2&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;TBC&lt;/span&gt;&lt;/p&gt;
&lt;h2&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;REPORTING NAME&lt;/strong&gt;&lt;/span&gt;&lt;/h2&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Bld Urea Nitrog (BUN), S&lt;/span&gt;&lt;/p&gt;
&lt;h2&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;OTHER NAME&lt;/strong&gt;&lt;/span&gt;&lt;/h2&gt;
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&lt;li&gt;&lt;span style=&quot;color: #808080;&quot;&gt;BUN&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Urea&lt;/span&gt;&lt;/li&gt;
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&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;Serum&lt;/span&gt;&lt;/p&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;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;SPECIMEN REQUIRED&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;Container/Tube:&lt;/strong&gt;&amp;nbsp;Serum gel&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; 0.5 mL&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;Collection Instructions:&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
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&lt;li&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Serum gel tubes need to undergo centrifugation within a 2-hour window from collection.&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Red-top tubes require centrifugation, followed by aliquoting the serum into a plastic vial within 2 hours of collection.&lt;/span&gt;&lt;/li&gt;
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Blood Urea Nitrogen (BUN), Serum