Allergies : Tests

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The health care provider will perform a physical exam and ask questions such as when the allergy occurs. Allergy testing may be needed to determine if the symptoms are an actual allergy or caused by other problems. For example, eating contaminated...
Source:ADAM
Date:February 15, 2007
Allergies can often be diagnosed by a careful medical history, matching the onset of symptoms to the exposure to possible allergens. Allergy tests can be used to identify potential allergens. These tests usually begin with prick tests or patch...
Source:Gale Encyclopedia of Alternative Medicine
Allergies can often be diagnosed by a careful medical history, matching the onset of symptoms to the exposure to possible allergens. Allergy is suspected if the symptoms presented are characteristic of an allergic reaction, and this occurs...
Source:Gale Encyclopedia of Children's Health
Allergies can often be diagnosed by a careful medical history, matching the onset of symptoms to the exposure to possible allergens. Allergy is suspected if the symptoms presented are characteristic of an allergic reaction and this occurs...
Source:Gale Encyclopedia of Medicine
RAST testing, performed by a laboratory technologist, is a blood test that measures the level of reactive IgE antibodies in the blood. Provocation tests, most commonly done with airborne allergens, present the allergen directly through the route...
Source:Gale Encyclopedia of Nursing and Allied Health
An elimination diet functions as a test, determining whether patients may have a sensitivity to certain foods. Initially, patients stop eating foods suspected of causing illness.
Source:Gale Encyclopedia of Nursing and Allied Health
An elimination diet is the systematic elimination of foods or group of foods from the diet suspected in causing a food allergy. It is used as a means to diagnose an allergic reaction to foods.
Source:Gale Encyclopedia of Children's Health
A systematic approach for diagnosing food allergies. An elimination diet is the systematic elimination of different foods and food groups from the diet as a means of diagnosing food allergies.
Source:Gale Encyclopedia of Childhood and Adolescence
An elimination diet functions as a test, determining whether patients may have a sensitivity to certain foods. Initially, patients stop eating foods suspected of causing illness.
Source:Gale Encyclopedia of Alternative Medicine
Allergy tests are any of several tests used to determine the substances to which a person is allergic.
Source:ADAM
Date:July 17, 2007
Allergy tests may be of two general types. In vivo tests that measure the immune response to an agent called an allergen that induces an allergic (atopic) reaction, and in vitro tests that measure the antibodies that mediate an allergic response.
Source:Gale Encyclopedia of Nursing and Allied Health
Allergy tests evaluate levels of allergic sensitivity to commonly encountered allergens, which may be foods, pollen, chemicals, or other substances in the environment. Purpose When recurring symptoms in children indicate sensitivity to certain substances in the environment, allergy testing can be used to identify the particular allergens that my be triggering reactions.
Source:Gale Encyclopedia of Children's Health
This is a blood test that measures complement activity or the concentration of complement components in serum.
Source:ADAM
Date:May 27, 2007
A complete blood count (CBC) test measures the following: The number of red blood cells (RBCs) The number of white blood cells (WBCs) The total amount of hemoglobin in the blood The fraction of the blood composed of red blood cells ( hematocrit ) The mean corpuscular volume (MCV) -- the size of the red blood cells CBC also includes information about the red blood cells that is calculated from the other measurements: MCH (mean corpuscular hemoglobin) MCHC (mean corpuscular hemoglobin concentration) The platelet count is also usually included in the CBC.
Source:ADAM
Date:September 11, 2006
One of the most commonly ordered clinical laboratory tests, a blood count, also called a complete blood count (CBC), is a basic evaluation of the cells (red blood cells, white blood cells, and platelets) suspended in the liquid part of the blood (plasma). It involves determining the numbers, concentrations, and conditions of the different types of blood cells.
Source:Gale Encyclopedia of Medicine
A complete blood count (CBC) is a series of tests used to evaluate the composition and concentration of the cellular components of blood. It consists of the following tests: red blood cell (RBC) count, white blood cell (WBC) count, and platelet count; measurement of hemoglobin and mean red cell volume; classification of white blood cells (WBC differential); and calculation of hematocrit and red blood cell indices .
Source:Gale Encyclopedia of Nursing and Allied Health
The clinical laboratory test that evaluates the three main cellular components of peripheral blood (red cells, white cells, and platelets) is called the " complete blood count " (CBC). It is used commonly to assess whether a patient is anemic (low red cell count), has an infection (increased white blood cells), or has abnormal blood coagulation (platelet levels).
Source:Gale Encyclopedia of Public Health
A complete blood count (CBC) is a series of tests used to evaluate the composition and concentration of the cellular components of blood. It consists of the following tests: red blood cell (RBC) count, white blood cell (WBC) count, and platelet count; measurement of hemoglobin and mean red cell volume; classification of white blood cells (WBC differential); and calculation of hematocrit and red blood cell indices .
Source:Gale Encyclopedia of Surgery
This is a test to measure the number of eosinophils (a type of white blood cell) in the blood. (See also blood differential .)
Source:ADAM
Date:April 5, 2007
During a physical examination, a health care provider studies a patient's body to determine the presence or absence of physical problems. A typical physical examination includes: Inspection (looking at the body) Palpation (feeling the body with hands) Auscultation (listening to sounds) Percussion (producing sounds)
Source:ADAM
Date:January 22, 2007
Allergy tests indicate a person ' s allergic sensitivity to commonly encountered environmental substances. Purpose Allergy is a reaction of the immune system.
Source:Gale Encyclopedia of Medicine
In a skin test anergy, a common antigen such as mumps, candida, or trichophytin is injected just under the skin. The purpose is to determine if a patient's immune system is reacting properly to antigens in general. An anergy test is usually just a control for some other skin test that is being performed. Because the anergy test can show whether your immune system is functioning properly or not, it can indicate whether the results of the other skin test are reliable.
Source:ADAM
Date:February 10, 2006
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