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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «H»:

  1. Hypoglossal neuropathy Hypoglossal neuropathy
    Hypoglossal neuropathy: Disease of the hypoglossal nerve, the twelfth cranial nerve. The twelve cranial nerves, the hypoglossal nerve included, emerge from the skull, as opposed to the spinal nerves which emerge from the vertebral column. The hypoglossal nerve supplies the muscles of the tongue. Pa...
  2. Hypoglycemia Hypoglycemia
    Hypoglycemia: Low blood sugar (glucose). When symptoms of hypoglycemia occur together with a documented blood glucose under 45 mg/dl, and the symptoms promptly resolve with the administration of glucose, the diagnosis of hypoglycemia can be made with some certainty. Hypoglycemia is only significant ...
  3. Hypoglycemia unawareness Hypoglycemia unawareness
    Hypoglycemia unawareness: A complication of diabetes in which the patient is unaware of a deep drop in blood sugar because it fails to trigger the secretion of epinephrine which generates the characteristic symptoms of hypoglycemia (such as palpitations, sweating, anxiety) that serve to warn the pat...
  4. Hypoglycemic Hypoglycemic
    Hypoglycemic: Relating to hypoglycemia, an abnormally low level of the sugar glucose in the blood, usually a complication of diabetes, in which the body does not produce enough insulin to fully metabolize glucose. Hypoglycemic symptoms include tiredness, dizziness, confusion, increased heart ra...
  5. Hypogonadism Hypogonadism
    Hypogonadism: A condition in which decreased production of gonadal hormones leads to below-normal function of the gonads and to retardation of sexual growth and development. (The gonads are the ovaries and testes and the hormones they normally produce include estrogen, progesterone, and testosterone...
  6. Hypohidrosis Hypohidrosis
    Hypohidrosis: Subnormal sweating, less sweating than usual. Hidrosis meaning sweating, so hypohidrosis is literally undersweating....
  7. Hypohidrotic Hypohidrotic
    Hypohidrotic: Pertaining to hypohidrosis, too little sweating....
  8. Hypokalemia Hypokalemia
    Hypokalemia: Low blood potassium. Potassium is the major positive ion (cation) found inside of cells. The chemical notation for potassium is K+. The proper level of potassium is essential for normal cell function. An abnormal decrease (or increase) of potassium can profoundly affect the nervou...
  9. Hypomagnesemia Hypomagnesemia
    Hypomagnesemia: Too little magnesium. Magnesium deficiency can occur due to inadequate intake or impaired intestinal absorption of magnesium. Low magnesium (hypomagnesemia) is often associated with low calcium (hypocalcemia) and low potassium (hypokalemia). Deficiency of magnesium causes increased i...
  10. Hypomania Hypomania
    Hypomania: A condition similar to mania but less severe. The symptoms are similar with elevated mood, increased activity, decreased need for sleep, grandiosity, racing thoughts, and the like. However, hypomanic episodes differ in that they do not cause significant distress or impair one's work, fami...
  11. Hypomanic Hypomanic
    Hypomanic: Affected by hypomania, a condition similar to mania but less severe. Hypomanic episodes may resemble manic episodes in symptoms. But hypomanic episodes do not cause significant distress or greatly impair one's work, family, or social life while manic episodes do....
  12. Hypomnesia Hypomnesia
    Hypomnesia: Abnormally poor memory of the past. As compared to hypermnesia and amnesia. From hypo- + the Greek mneme, memory....
  13. Hyponatremia Hyponatremia
    Hyponatremia: An abnormally low concentration of sodium in the blood. Too little sodium can cause cells to malfunction, and extremely low sodium can be fatal. Hyponatremia has many causes including medications such as diuretics and antidepressants, hypothyroidism, cortisone deficiency (such as in...
  14. Hypoosmolar Hypoosmolar
    Hypoosmolar: In biochemistry, referring to hypoosmolarity, an abnormal decrease in the osmolarity of the body fluids....
  15. Hypoosmolarity Hypoosmolarity
    Hypoosmolarity: In biochemistry, an abnormal decrease in the osmolarity of the body fluids....