Arthritis is the leading cause of disability in the United States. Learn about types of arthritis and the role of arthritis testing.
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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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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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Hormone testing in women and people assigned female at birth helps assess pregnancy, infertility, thyroid problems, abnormal menstruation, and menopause.
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The body usually maintains its acid-base balance, but sometimes things go wrong. Acidosis is when body fluids are too acidic, and alkalosis occurs when body fluids are too alkaline.
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Having problems with your metabolism? Testing your thyroid gland function reveals if it is helping your body use and store energy normally.
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