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Vitamin A

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Vitamin A testing is used to help diagnose vitamin A deficiency or toxicity.
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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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Celiac Disease Testing

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Celiac disease is an autoimmune disorder triggered by eating gluten. Learn about the types of celiac disease tests as well as how and when they are used.
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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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Calcium Test

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A blood calcium test is ordered to screen for, diagnose, and monitor a range of conditions relating to the bones, heart, nerves, kidneys, and teeth.
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Fetal Fibronectin (fFN)

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Explains how the fetal fibronectin (fFN) test is used to help evaluate a pregnant woman's risk of preterm delivery, when a fFN test is ordered, and what the results of an fFN test might mean
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Erythropoietin

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Erythropoietin (EPO) is a hormone made by the kidneys that plays a key role in production of red blood cells. An EPO test can help diagnose the cause of anemia or help identify people who need EPO replacement therapy.
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