In a study of fish- and crustacea-allergic adults, the reactivity to mackerel was the second highest. Species within groups of fish, like Gadiformes (examples: codfish and hake) and Scombroid fishes (examples: mackerel and tuna) seem to share allergenic components. The overlap of allergen specificity between the groups seems to be moderate or even small. The Atlantic mackerel (Scomber scombrus), is a pelagic schooling species of mackerel found on both sides of the North Atlantic Ocean. The species is also called Boston mackerel, or just mackerel. This IgE antibody allergy test uses a blood sample to determine if you are allergic to Mackerel, a commonly eaten fish. Traditional allergy tests utilize the Skin Prick method (also known as a Puncture or Scratch test) to determine whether an allergic reaction will occur by inserting possible triggers into your skin using a needle prick. If you are allergic to the substance, you are forced to suffer through your body's reaction to the allergen. Reactions can be severe and even life-threatening. The severity of symptoms may vary according to the amount ingested and the sensitivity of the person. Often the first symptom is irritation and itching in mouth and throat appearing few minutes after the intake. It can be followed by other allergic reactions such as nausea, vomiting, stomach ache, diarrhoea, hives (also called urticaria or nettle rash), swelling under the skin (also called angioedema), itching and reddening of the skin, worsening of eczema, asthma (wheezing, breathlessness, coughing), hay fever (itchy nose and eyes, sneezing/runny nose), swelling of the airways, and sometimes fatal episodes of allergic shock. Usually a combination of several symptoms is seen. Spoiled fish can contain a substance called histamine. This is the same substance that is produced by cells of an allergic patient during an allergic reaction. It is involved in the induction of symptoms. Spoiled fish can elicit symptoms in every person having eaten it. The reaction is similar to an allergic reaction, i.e. swelling, hives, wheezing etc., but it is poisoning. An indication for IgE-mediated fish allergy can be obtained from skin prick testing and from serum IgE testing. The presence of a positive skin prick test or of fish protein-specific IgE-antibody in serum is indicative of an IgE-mediated fish allergy, but both tests may be false-positive or false-negative. Therefore, a definitive diagnosis has to be based on strict, well-defined elimination and re-introduction protocols or on controlled fish challenge procedures. Fish allergy is confirmed if symptoms disappear after elimination and re-appear upon re-introduction or if a so-called double-blind placebo controlled food challenge gives a positive result. During such a challenge both doctor and patient do not know which challenge meal contains fish and which does not. Such challenge procedures are also helpful in determining the threshold dose of reactivity, and to verify if a person has outgrown the food allergy, although this is rarely seen with fish allergy.
No special preparation is needed for Allergy Macerel Fluorescence Assay. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing Allergy Macerel Fluorescence Assay. Your doctor depending on your condition will give specific instructions.
|UNISEX||All age groups||Increased IgE (>100kU/l) is seen if the person is allergic to the specific substance|