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Editorial Policy

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The mission of Testing.com is to provide a comprehensive, accurate, dynamic, and up-to-date website to inform the public about laboratory testing. The scientific content is developed and updated in accordance with established editorial policies.
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Influenza Tests

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The flu is a respiratory illness triggered by infection with an influenza virus. Our guide explains the types of flu tests and when and how they may be used.
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Acetaminophen

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Acetaminophen is a common pain reliever and fever reducer. Lab testing can help determine if a person has taken too much acetaminophen (overdosed) and whether an antidote should be given.
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Gastrin

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Gastrin is a hormone that regulates the production of acid in the stomach during the digestive process. The gastrin test helps diagnose tumors called gastrinomas, Zollinger-Ellison (ZE) syndrome, and hyperplasia of G-cells.
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Pubic Lice Test

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Pubic lice are parasitic insects that live and typically reproduce in pubic hair. Learn more about the symptoms of pubic lice and how to get tested.
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PD-L1

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Some tumor cells have large amounts of PD-L1. A lab test measures how much PD-L1 is present on tumor cells to help guide treatment of certain cancers.
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HIV Viral Load

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HIV viral load testing measures the amount of HIV genetic material in the blood. Learn more about this test and how it’s used to guide treatment for HIV.
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ACTH Stimulation Test

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Learn about the ACTH stimulation test, used to help diagnose primary adrenal insufficiency (Addison disease) and to detect conditions affecting the pituitary gland.
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