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Nicotine and Cotinine Test

  • Test
Nicotine and cotinine tests detect evidence of nicotine in the body. Learn more about when these tests may be used and how to understand your test results.
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Urine Drug Test

  • Test
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

  • Page
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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Hair Follicle Drug Test

  • Test
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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Paternity Test

  • Test
Paternity tests are used to determine whether someone is the genetic parent of a child. Learn more about how and when to take a paternity test.
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Cancer Testing

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Understand who needs cancer testing and what you can expect from getting tested.
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Antidiuretic Hormone (ADH)

  • Test
Antidiuretic hormone (ADH) or arginine vasopressin (AVP) helps regulate water balance in the body. An ADH blood test measures your level to detect too much or too little ADH and, with other tests, help determine the cause.
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