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Silk Allergy IgE Blood Test

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The Silk Allergy IgE Blood Test measures the IgE antibody levels in the blood to detect an allergy to silk.


Test Code:



Thermo Fisher ImmunoCAP®




No special preparation is required.

Test Results:

2-5 days. May take longer based on weather, holiday, or lab delays.

Walk-In Lab is prohibited from selling LabCorp tests to residents in the following states:NY, NJ, RI, MA, MD

What is the purpose of this test?

Order this Silk Allergy IgE Blood Test measures the IgE antibody levels in the blood to detect an allergy to silk. The silk that is cultured from the Bombyx mori is highly sought after for its exclusive use in textiles. However, workers in the silk industry are subjected to significant levels of exposure. While handling pure silk, they are exposed to silk waste containing highly potent allergens, such as insect material. 


As a result, allergic respiratory symptoms are commonly observed among silk industry workers, which have been attributed to proteins from the silkworm. While the substance sericin, which glues together the thread filaments, was previously thought to be the culprit, this hypothesis has yet to be confirmed. It should be noted that dust containing pure silk is not considered a potent allergen.


When should I order a Silk Allergy IgE Blood Test?

Individuals may order this test if they have experienced silk allergy symptoms. Allergy symptoms vary depending on the individual, ranging from mild to severe reactions. An allergic reaction may affect the skin and air pathways. Individuals with a silk allergy may experience one or more of the following symptoms:


  • Swelling
  • Itching or hives
  • Congestion
  • Difficulty breathing, swallowing, or wheezing
  • Lightheadedness


In some cases, a severe, possibly life-threatening allergic reaction known as anaphylaxis may occur. An anaphylactic response requires immediate medical attention. Signs or symptoms of anaphylaxis may include:


  • Rapid or increased heart rate
  • Swollen throat or lump, making it difficult to breathe
  • Low blood pressure
  • Extreme dizziness or loss of consciousness

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