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Diseases & conditions A-Z List

Diseases & Conditions A-Z List - «A»:

  1. Allergic rhinitis Allergic rhinitis
    Allergic rhinitis is a collection of symptoms, mostly in the nose and eyes, which occur when you breathe in something you are allergic to, such as dust, dander, or pollen. This article focuses on allergic rhinitis due to outdoor triggers, such as plant pollen. This type of allergic rhinitis is commo...
  2. Allergic rhinitis - what to ask your doctor - adult Allergic rhinitis - what to ask your doctor - adult
    Allergies to pollen, dust mites, and animal dander in the nose and nasal passages are also called allergic rhinitis. Hay fever is another word often used for this problem. Symptoms are usually a watery, runny nose and itching in your nose. Allergies can also bother your eyes. Below are some question...
  3. Allergic rhinitis - what to ask your doctor - child Allergic rhinitis - what to ask your doctor - child
    Allergies to pollen, dust mites, and animal dander are also called allergic rhinitis. Hay fever is another word often used for this problem. Symptoms are usually a watery, runny nose and itching in your eyes and nose. Below are some questions you may want to ask your child’s doctor or nurse t...
  4. Allergic vasculitis Allergic vasculitis
    Allergic vasculitis is an extreme reaction to a drug, infection, or foreign substance that leads to inflammation and damage to blood vessels of the skin. Causes Allergic vasculitis is caused by an allergic reaction to a drug or other foreign substance. Most patients are older than 15 years. Even wi...
  5. Allergies Allergies
    An allergy is an exaggerated immune response or reaction to substances that are generally not harmful. See also: Allergic conjunctivitis Allergic reactions Allergy testing Allergy to mold, dander, dust Atopic dermatitis (eczema) Contact dermatitis Drug allergies Food allergies Hay f...
  6. Allergy testing Allergy testing
    Allergy tests are any of several tests used to determine the substances to which a person is allergic. How the Test is Performed There are many methods of allergy testing. Among the more common are: Skin tests Elimination-type tests Blood tests (including the radioallergosorbent, or RAST, test) S...
  7. Allergy to mold - animal dander - dust Allergy to mold - animal dander - dust
    Allergy-related symptoms can occur after you are around mold, certain animals or animal hair, dust, and other substances. These substances are usually found indoors and do not cause symptoms for most people. See also: Asthma Allergic rhinitis Causes Allergies occurs when the immune system ov...
  8. Alopecia areata Alopecia areata
    Alopecia areata is a condition that causes round patches of hair loss. Causes The cause of alopecia areata is unknown. About a fifth of people with this condition have a family history of alopecia. Alopecia areata may sometimes occur with autoimmune diseases. Forms of alopecia include: Alopecia to...
  9. ALP ALP
    Alkaline phosphatase (ALP) is a protein found in all body tissues. Tissues with particularly high amounts of ALP include the liver, bile ducts, and bone. A blood test can be done to measure the level of ALP. See also: ALP isoenzyme test How the Test is Performed Blood is drawn from a vein, usually...
  10. ALP isoenzyme test ALP isoenzyme test
    Alkaline phosphatase (ALP) is a substance found in all body tissues. There are many different forms of ALP. Each type has a different chemical structure, called an isoenzyme. Its structure depends on where in the body it is produced. For example, liver and bone ALP isoenzymes have different structur...
  11. Alpha fetoprotein Alpha fetoprotein
    Alpha fetoprotein (AFP) is a protein normally produced by the liver and yolk sac of a fetus. AFP levels decrease soon after birth. AFP probably has no normal function in adults. A test can be done to measure the amount of AFP in your blood. See also: Quadruple screen How the Test is Performed Bloo...
  12. Alpha-1 antitrypsin deficiency Alpha-1 antitrypsin deficiency
    Alpha-1 antitrypsin (AAT) deficiency is condition passed down through families in which the liver does not make enough of a protein that protects the lungs and liver from damage. The condition can lead to emphysema and liver disease. Causes Alpha-1 antitrypsin (AAT) is a type of protein called a "p...
  13. Alpha-1 antitrypsin test Alpha-1 antitrypsin test
    Alpha-1 antitrypsin is a laboratory test to measure the amount of alpha-1 antitrypsin (A1AT) in your blood. How the Test is Performed Blood is typically drawn from a vein, usually from the inside of the elbow or the back of the hand. The site is cleaned with germ-killing medicine (antiseptic). The ...
  14. Alport syndrome Alport syndrome
    Alport syndrome is an inherited disorder that damages tiny blood vessels in the kidneys. Causes Alport syndrome is an inherited form of kidney inflammation (nephritis). It is caused by a mutation in a gene for a protein in connective tissue, called collagen. The disorder is uncommon, and most often...
  15. ALS - resources ALS - resources
    The following organization is a good resource for information on amyotrophic lateral sclerosis: National Institute of Neurological Disorders and Stroke -- www.ninds.nih.gov/disorders/amyotrophiclateralsclerosis/amyotrophiclateralsclerosis.htm The Amyotrophic Lateral Sclerosis Association - www.als...