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Marijuana (THC) Testing

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Drug testing for marijuana is ordered by employers and other organizations. Learn about how long marijuana stays in your body and how testing is conducted.
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Opioid Testing

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Getting tested for opioid use? Opioid testing detects evidence of both illegal and prescription opioids. Learn more about opioid testing in our guide.
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First Trimester Screening

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The first trimester prenatal screening includes tests that assesses the risk that a fetus has a chromosome disorder such as Down syndrome.
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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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At-Home Colon Cancer Testing

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At-home colorectal cancer tests use a stool sample to detect cancer early. Learn about the types of at-home colorectal cancer tests and their pros and cons.
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Stool DNA Test

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The stool DNA test checks for genetic changes in the cells in your stool. Abnormal cells or blood in the stool may be a sign of precancerous growths or cancer.
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Hepatitis Testing

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Hepatitis is inflammation of the liver. Learn more about types of hepatitis and tests that may be used to diagnose, evaluate, and monitor this condition.
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