Food Allergy Testing Clinic in San Mateo, CA

Columbia Asthma & Allergy Clinic in San Mateo offers comprehensive food allergy testing & treatment for children & adults. Please call our friendly staff or visit us at 101 S San Mateo Dr, Suite 311 San Mateo, CA 94401.

Food Allergy Testing Clinic in San Mateo, CA

Food allergies are becoming an increasingly more prevalent concern for children and adults. Sometimes, a child could have a reaction as the result of a food allergy, and you as a parent don’t even know what’s causing it. In some cases, a person is unaware he or she or their child has a food allergy until a major allergic reaction occurs. At Columbia Asthma & Allergy Clinic, serving San Mateo, CA and the surrounding area, we provide food allergy testing to determine your or your child’s allergies. 

About Food Allergies

Children are more prone to allergies than adults. In fact, many children grow out of their allergy before adulthood. Based on statistics, the number of people with food allergies is growing.

Most commonly, people are allergic to the following:

  • Fish
  • Shellfish
  • Eggs
  • Peanuts
  • Tree nuts like almonds, pecans, and walnuts
  • Soybeans
  • Wheat

A food allergy occurs when a person’s immune system believes a certain food is harmful to a person. Therefore, his or her body has an allergic reaction trying to ward off the harmful substance. Most individuals react to the protein in a particular food more so than any other component of it. In some cases, the person has digestive symptoms like nausea, vomiting, or diarrhea. It’s also possible for that person to experience hives or swelling of his or her tongue, throat, or lips.

The most serious food allergy reaction is known as anaphylaxis. This occurs when the person’s entire body is affected by the allergen. Some signs of this possibly life-threatening issue include the following:

  • Coughing, wheezing, or congestion
  • Difficulty breathing
  • Tightening of the lungs
  • Hoarseness
  • Fainting
  • Weak pulse
  • Tachycardia (rapid heart rate)
  • Dizziness
  • Low blood pressure
  • Chest pain
  • Throat swelling

Some individuals also have hives along with their other anaphylactic symptoms.

Skin Allergy Testing

One of the more common ways we diagnose a food allergy is through skin allergy testing. Typically, we can complete the entire test within 20 minutes.

We may conduct a skin prick test, often referred to as a scratch test. For children, we perform the test on their backs. For adults, on the other hand, we use their arm. We apply extracts of allergens. Then, we use small needles known as lancets to scratch your skin. This allows the extracts to seep into your skin. About 15 minutes after we prick your skin, we’ll evaluate you for any reaction.

We might conduct a skin injection test, which is also known as an intradermal test. The test begins with our practitioner injecting a small amount of an allergen extract under your skin. We then look at the area 15 minutes later to see if you had a reaction. 

A patch test is a skin test that can identify an allergy to preservatives in foods. This test consists of us applying allergens to patches. Then, we apply them to your skin. We ask you to wear the patches for two days. When you return, we look to see if you had a reaction to any of the substances. 

Other Allergy Testing

We could also conduct a blood test where we evaluate your blood for a specific antibody. Sometimes, we perform challenge or elimination tests. Elimination tests consist of us eliminating certain foods until you don’t have a reaction while challenge tests are comprised of you eating a small amount of a potential allergen. 

Schedule food allergy testing at Columbia Asthma & Allergy Clinic, located in San Mateo, CA, by calling us

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