&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;Carcinoembryonic Antigen (CEA) is a protein that can be found in spinal fluid. Its presence can be indicative of various conditions, including certain types of cancer, such as colorectal cancer, as well as other malignancies. However, elevated levels of CEA in spinal fluid can also be associated with non-cancerous conditions such as inflammation or infection of the central nervous system.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;The measurement of CEA levels in spinal fluid is not a routine test and is typically performed in specific clinical situations where there is suspicion of central nervous system involvement by cancer or other diseases. Interpretation of CEA levels in spinal fluid requires consideration of clinical context and other diagnostic findings.&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;div class=&quot;flex-1 overflow-hidden&quot;&gt;
&lt;div class=&quot;react-scroll-to-bottom--css-bdbol-79elbk h-full&quot;&gt;
&lt;div class=&quot;react-scroll-to-bottom--css-bdbol-1n7m0yu&quot;&gt;
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&lt;div class=&quot;w-full text-token-text-primary&quot; dir=&quot;auto&quot; data-testid=&quot;conversation-turn-59&quot;&gt;
&lt;div class=&quot;px-4 py-2 justify-center text-base md:gap-6 m-auto&quot;&gt;
&lt;div class=&quot;flex flex-1 text-base mx-auto gap-3 juice:gap-4 juice:md:gap-6 md:px-5 lg:px-1 xl:px-5 md:max-w-3xl lg:max-w-[40rem] xl:max-w-[48rem] group final-completion&quot;&gt;
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&lt;div class=&quot;flex flex-grow flex-col max-w-full&quot;&gt;
&lt;div class=&quot;min-h-[20px] text-message flex flex-col items-start gap-3 whitespace-pre-wrap break-words [.text-message+&amp;amp;]:mt-5 overflow-x-auto&quot; dir=&quot;auto&quot; data-message-author-role=&quot;assistant&quot; data-message-id=&quot;4104d2d3-cd40-4fac-82ac-d457515d966f&quot;&gt;
&lt;div class=&quot;markdown prose w-full break-words dark:prose-invert light&quot;&gt;
&lt;ul&gt;
&lt;li data-sider-select-id=&quot;c074cb2d-ddbf-4bf5-b084-83f33489a091&quot;&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Identifying meningeal carcinomatosis and infiltration within the spinal cord&#39;s coverings, whether within or outside the cord.&lt;/span&gt;&lt;/p&gt;
&lt;/li&gt;
&lt;li data-sider-select-id=&quot;c074cb2d-ddbf-4bf5-b084-83f33489a091&quot;&gt;
&lt;p&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Distinguishing metastasis within brain tissue from adenocarcinoma or squamous cell carcinoma.&lt;/span&gt;&lt;/p&gt;
&lt;/li&gt;
&lt;/ul&gt;
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&lt;/div&gt;
&lt;/div&gt;
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&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&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;Immunoenzymatic Assay&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;&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;Carcinoembryonic Ag (CEA), CSF&lt;/span&gt;&lt;/p&gt;
&lt;h3&gt;&lt;span style=&quot;color: #808080;&quot;&gt;&lt;span style=&quot;color: #33cccc;&quot;&gt;&lt;strong&gt;OTHER NAME&lt;/strong&gt;&lt;/span&gt;&lt;/span&gt;&lt;/h3&gt;
&lt;ul&gt;
&lt;li&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Tumor Markers&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span style=&quot;color: #808080;&quot;&gt;Carcinoembryonic Antigen (CEA)&lt;/span&gt;&lt;/li&gt;
&lt;/ul&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;CSF&lt;br /&gt;&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;
&lt;div class=&quot;flex-1 overflow-hidden&quot;&gt;
&lt;div class=&quot;react-scroll-to-bottom--css-ffwkx-79elbk h-full&quot;&gt;
&lt;div class=&quot;react-scroll-to-bottom--css-ffwkx-1n7m0yu&quot;&gt;
&lt;div class=&quot;flex flex-col text-sm pb-9&quot;&gt;
&lt;div class=&quot;w-full text-token-text-primary&quot; dir=&quot;auto&quot; data-testid=&quot;conversation-turn-7&quot;&gt;
&lt;div class=&quot;px-4 py-2 justify-center text-base md:gap-6 m-auto&quot;&gt;
&lt;div class=&quot;flex flex-1 text-base mx-auto gap-3 juice:gap-4 juice:md:gap-6 md:px-5 lg:px-1 xl:px-5 md:max-w-3xl lg:max-w-[40rem] xl:max-w-[48rem] group final-completion&quot;&gt;
&lt;div class=&quot;relative flex w-full flex-col agent-turn&quot;&gt;
&lt;div class=&quot;flex-col gap-1 md:gap-3&quot;&gt;
&lt;div class=&quot;flex flex-grow flex-col max-w-full&quot;&gt;
&lt;div class=&quot;min-h-[20px] text-message flex flex-col items-start gap-3 whitespace-pre-wrap break-words [.text-message+&amp;amp;]:mt-5 overflow-x-auto&quot; dir=&quot;auto&quot; data-message-author-role=&quot;assistant&quot; data-message-id=&quot;51364005-ca87-4f44-9ae9-16e243c2b60c&quot;&gt;
&lt;div class=&quot;markdown prose w-full break-words dark:prose-invert light&quot;&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;Collection Container/Tube:&amp;nbsp;&lt;/strong&gt;Sterile 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;Submission Container/Tube:&lt;/strong&gt;&amp;nbsp;13 x 75-mm tube&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:&amp;nbsp;&lt;/strong&gt;0.5 mL&lt;/span&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
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&lt;/div&gt;
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&lt;/div&gt;
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&lt;/div&gt;
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&lt;/div&gt;

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Carcinoembryonic Antigen (CEA), Spinal Fluid