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Glossary

Showing 581-590 out of 1156 Terms

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  • Hyperparathyroidism

    HY-per-PAYR-uh-THY-roy-dih-zum

    A condition in which the parathyroid gland (one of four pea-sized organs found on the thyroid) makes too much parathyroid hormone. This causes a loss of calcium from the bones and an increased level of calcium in the blood. Symptoms include bone pain and kidney problems.

  • Hypersensitivity

    (HY-per-SEN-sih-tih-vih-tee)

    An exaggerated response by the immune system to a drug or other substance.

  • Hypertension

    (HY-per-TEN-shun)

    A blood pressure of 140/90 or higher. Hypertension usually has no symptoms. It can harm the arteries and cause an increase in the risk of stroke, heart attack, kidney failure, and blindness. Also called high blood pressure.

  • Hypnosis

    (hip-NOH-sis)

    A trance-like state in which a person becomes more aware and focused on particular thoughts, feelings, images, sensations, or behaviors. While under hypnosis, a person may feel calm, relaxed, and more open to suggestion. Hypnosis is usually done with the help of a specially trained therapist. It may be used to help relieve stress, anxiety, and pain, and to help a person quit smoking or lose weight. Hypnosis is a type of complementary and alternative medicine (CAM).

  • Hypo

    Prefix meaning ""too little."".

  • Hypocalcemia

    Too little calcium in the blood.

  • Hypocellular

    Less than the normal number of cells.

  • Hypofractionated radiation therapy

    (HY-poh-FRAK-shuh-NAY-ted RAY-dee-AY-shun THAYR-uh-pee)

    Radiation treatment in which the total dose of radiation is divided into large doses and treatments are given once a day or less often. Hypofractionated radiation therapy is given over a shorter period of time (fewer days or weeks) than standard radiation therapy.

  • Hypoglycemia

    (HY-poh-gly-SEE-mee-uh)

    Abnormally low blood sugar.

  • Hypokalemia

    (Hypocalemia)

    Too little potassium in the blood.