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Hair Follicle Drug Test

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Considering a hair follicle drug test? Learn about how long drugs can be detected in the hair, which drugs can be identified, and how hair testing works.
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Urine Drug Test

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Urine drug tests are the most common method of testing for the use of illegal drugs and the misuse of prescription and over-the-counter medicines.
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Drug Testing

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Drug testing detects evidence of drug use. Learn about types of drug tests, when drug testing is used, and interpreting drug test results.
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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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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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