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Drugs and diseases reference index

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Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «A»:

  1. ALT ALT
    Alanine transaminase (ALT) is an enzyme found in the highest amounts in the liver. Injury to the liver results in release of the substance into the blood. This article discusses the test to measure the amount of ALT in the blood. How the Test is Performed Blood is typically drawn from a vein, usual...
  2. Alternative medicine - pain relief Alternative medicine - pain relief
    Alternative medicine refers to treatments that are used instead of conventional (standard) ones. If you use an alternative treatment along with conventional medicine or therapy, it's considered complementary therapy. There are many forms of alternative medicine. For many people, acupuncture is an ef...
  3. Alveolar abnormalities Alveolar abnormalities
    Alveolar abnormalities are changes in the tiny air sacs in the lungs, called alveoli. The alveoli allow oxygen to enter the blood. These air sacs may collapse, fuse together, or develop thickened membranes, making it difficult for oxygen to enter the blood. ...
  4. Alzheimer's disease Alzheimer's disease
    Dementia is a loss of brain function that occurs with certain diseases. Alzheimer's disease (AD), is one form of dementia that gradually gets worse over time. It affects memory, thinking, and behavior. Memory impairment, as well as problems with language, decision-making ability, judgment, and pers...
  5. Alzheimer’s - resources Alzheimer’s - resources
    The following organizations are good resources for information on Alzheimer's disease: Alzheimer's Association - www.alz.org Alzheimer's Disease Education and Referral Center - www.nia.nih.gov/alzheimers Alzheimer's Disease Research - www.ahaf.org/alzheimers Alternative Names Resources - Alzhe...
  6. Amaurosis fugax Amaurosis fugax
    Amaurosis fugax is loss of vision in one eye due to a temporary lack of blood flow to the retina. Causes Amaurosis fugax is thought to occur when a piece of plaque in the carotid artery breaks off and travels to the retinal artery in the eye. Plaque is a hard substance that forms when fat, choleste...
  7. Ambiguous genitalia Ambiguous genitalia
    Ambiguous genitalia is a birth defect where the outer genitals do not have the typical appearance of either a boy or a girl. See also: Genetics Considerations The genetic sex of a child is determined at conception. The mother's egg cell (ovum) contains an X chromosome, while the father's sperm cel...
  8. Amblyopia Amblyopia
    Amblyopia, or "lazy eye," is the loss of one eye's ability to see details. It is the most common cause of vision problems in children. Causes Amblyopia occurs when the nerve pathway from one eye to the brain does not develop during childhood. This occurs because the abnormal eye sends a blurred ima...
  9. Amebiasis Amebiasis
    Amebiasis is an infection of the intestines caused by the parasite Entamoeba histolytica. Causes Entamoeba histolytica can live in the large intestine (colon) without causing disease. However, sometimes, it invades the colon wall, causing colitis, acute dysentery, or long-term (chronic) diarrhea. ...
  10. Amebic liver abscess Amebic liver abscess
    Amebic liver abscess is a collection of pus in the liver brought on by an intestinal parasite. Causes Amebic liver abscess is caused by Entamoeba histolytica, the same organism that causes amebiasis, an intestinal infection also called amebic dysentery. The organism is carried by the blood from the...
  11. Amelogenesis imperfecta Amelogenesis imperfecta
    Amelogenesis imperfecta is a tooth development disorder in which the teeth are covered with thin, abnormally formed enamel. Causes Amelogenesis imperfecta is passed down through families as a dominant trait. That means you only need to get the abnormal gene from one parent in order for you to get t...
  12. Amenorrhea - primary Amenorrhea - primary
    Amenorrhea is the absence of menstruation. Menstruation is a woman's monthly period. Primary amenorrhea is when a girl has not yet started her monthly periods, and she: Has gone through other normal changes that occur during puberty Is older than 15 See also: Menstruation - absent Secondary am...
  13. Amino acids Amino acids
    Amino acids are organic compounds that combine to form proteins. When proteins are digested, amino acids are left. The human body requires a number of amino acids to grow and breakdown food. Amino acids are classified into two groups: Essential amino acids cannot be made by the body and must be su...
  14. Aminoaciduria Aminoaciduria
    Aminoaciduria is an abnormal amount of amino acids in the urine. Amino acids are the building blocks for proteins in the body. This article discusses the test used to look for increased amounts of amino acids in the urine. See also: Amino acids blood test Inborn errors of metabolism How the T...
  15. Amitriptyline and perphenazine overdose Amitriptyline and perphenazine overdose
    Amitriptyline and perphenazine is a combination drug that is sometimes prescribed for patients with depression, agitation, or anxiety. Amitriptyline and perphenazine overdose occurs when someone accidentally or intentionally takes more than the normal or recommended amount of this medication. This i...