Allergy Testing

More than 50 million people in the U.S. have an allergy of some kind, according to the Asthma and Allergy Foundation of America. The Foundation reports that allergies are the sixth leading cause of chronic illness in the U.S.(1)

Skin testing for allergies, which has been practiced for more than 100 years, is generally the first step in diagnosing a patient’s specific allergies. Successful immunotherapy relies on safe and accurate testing.(2)

When is allergy testing indicated? The American Academy of Allergy, Asthma, and Immunology lists these common symptoms that lead to allergy testing:

  • Respiratory: itchy eyes, nose, or throat; nasal congestion, runny nose, watery eyes, chest congestion, cough, or wheezing
  • Skin: itchiness or eczema
  • Abdominal: vomiting or cramping and diarrhea consistently after eating certain foods
  • Severe reactions to insect stings (other than swelling at the site of the sting)
  • Anaphylaxis: a serious allergic reaction that affects many parts of the body at the same time(2)

Edge Pharmaceuticals provides clinicians supplies required to perform skin testing on patients, including skin test applicators to deliver allergenic substances, mixing and injection syringes, and diagnostic allergenic extracts. Xtract Immunotherapy Software tracks testing results and integrates with EMR systems for efficiency, security, and organization.

Blood testing is an additional option for patients who show symptoms of allergies. According to the American College of Allergy, Asthma, and Immunology, blood tests are often used for the following reasons:

  • The patient is taking a medicine that can interfere with skin testing, but cannot be stopped for a few days.
  • The patient suffers from a severe skin condition such as eczema or psoriasis.
  • Testing with a strong allergen might cause an extra large positive reaction.(2)


(1) Asthma and Allergy Foundation of American, online reference,
(2) American College of Allergy, Asthma and Immunology, online reference,


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