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Allergy Testing

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Allergy Testing

One in three Americans is affected by seasonal or year-round allergies, leading to chronic sleep troubles, poor focus, mood disorders, and infections and inflammation for millions of Americans. Though allergy symptoms can be fairly mild in some people, they can lead to utter misery in others and can translate to more missed workdays and loss of productivity.

Pet allergies and food allergies are also common, and many people may not be fully aware of their specific allergens. A full allergy testing panel can reveal your specific allergens, as well as the immunotherapy treatment options available to you.

Common Causes

An allergy is an immune response to the body’s exposure to a specific foreign substance. Research suggests that certain genetic mechanisms may give the body a tendency toward a specific allergen at birth, but most allergies are acquired through exposure and can occur at any age. Oddly, you can experience an allergic reaction to an allergen that you’ve been exposed to many times before without incident.

When your body decides that a specific allergen is now an invader — for whatever reason — you have developed an allergy to that foreign substance. During exposure, your immune system studies the allergen and prepares for another exposure by developing antibodies, which are designed to detect it. The next time you’re exposed to that foreign substance, your immune system recognizes it and activates cells in your body to disable it. These cells release a chemical called histamine, which causes swelling and other allergy symptoms.

Your body has a threshold of exposure for most allergens, meaning that it can handle a certain amount of a specific allergen. Too much exposure, however, and your body triggers an attack on this substance. Over time, you may outgrow an allergy and see your symptoms become less severe, or they may worsen.

Symptoms

Although food allergies and pet allergies may differ in severity from rhinitis (hay fever) or other common allergies, the symptoms of an allergic reaction are often similar. Usually, an individual having an allergic reaction experiences:

  • Coughing
  • Fatigue
  • Itchy, watery eyes
  • Sore throat
  • Runny or stuffy nose

 
Other, more severe reactions are referred to as symptoms of anaphylaxis. These are life-threatening and typically occur with exposure to drugs, penicillin, insect stings, food allergies (peanuts, shellfish), x-ray dye, and latex. Please seek emergency medical care if any of the below symptoms occur after exposure to an allergen:

  • Tightness in the lungs or trouble breathing
  • Chest pain
  • Low blood pressure
  • Dizziness, fainting
  • Hives or welts
  • Swelling of the throat, face, lips, or tongue
  • Abdominal pain, nausea, or vomiting

 

Testing Options

The first step in treating an allergy is to find out what is causing the reaction. There are a variety of ways to do this.

  • Radioallergosorbent Testing (RAST)

    RAST involves sending a sample of your blood to a lab to be tested for allergens. We don’t typically recommend this method as allergens may not show up in blood and can be missed.

  • Conventional Intradermal Testing

    Conventional Intradermal Testing is one of the classic ways to test for allergens but also the most tedious. A very weak dose of potential allergens is introduced to the outermost layer of the skin to see if a reaction takes place. This method requires multiple shots to determine how reactive you are to each allergen.

  • Modified Quantitative Testing (MQT)

    MQT is a state-of-the-art method. It combines both intradermal testing and skin-prick testing. This allows the physician to precisely identify the degree of reactivity with fewer shots. This is our preferred testing method.

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