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Ragweed (Short/Commom) Allergy IgE Blood Test

The ragweed (short/common) allergy IgE blood test measures the amount of allergen-specific IgE antibodies in the blood to detect an allergy to short or common ragweed.


Test Code: 602463

Also Known As: Common Ragweed; Short Ragweed; Ragweed

Methodology: Thermo Fisher ImmunoCAP

Preparation: No special preparation required.

Test Results: 3-5 days. May take longer based on weather, holiday or lab delays.


Test Code: 2401

Also Known As: Common Ragweed; Short Ragweed; Ragweed

Methodology: Immunoassay (IA)

Preparation: No special preparation required.

Test Results: 3-5 days. May take longer based on weather, holiday or lab delays.

Description

Order a ragweed (short/common) allergy IgE blood test to detect an allergy to short/common ragweed. This test measures the amount of allergen-specific antibodies in a blood sample.

Ragweed (short/common) is one of the most common causes of seasonal allergies in the United States. Individuals who have ragweed allergies are reacting to its pollen and are unlikely to go away once developed. Ragweed plants are yellow flowering weeds with soft stems that grow all over the United States. There are at least 17 ragweed species that grow in North America. The plants thrive in open spaces with plenty of sunshine, such as rural areas. Ragweed plants release billions of tiny pollen grains into the air in the late spring and fall months to fertilize other ragweed plants.

Ragweed season usually begins in early August and ends in mid-October and is worse when days are warm and dry and nights are cool. Peak ragweed hours are between 10 a.m. and 3 p.m. Counts are lower in the early morning and late afternoon.

Some foods and herbs contain proteins that are similar to those found in ragweed pollen, causing allergic reactions. Eating these foods may worsen symptoms. These include:

  • Cucumbers
  • Bananas
  • Echinacea
  • Chamomile
  • Honeydew melons
  • Cantaloupes
  • Zucchini
  • Watermelon

An allergy to ragweed triggers a reaction in an individual's immune system. The body views certain substances as toxic and produces IgE antibodies to these contaminants. These antibodies cause histamine to be released, which will cause the symptoms of an allergic reaction.

Allergy symptoms vary from one individual to the next ranging from mild to severe reactions, which can be experienced within minutes to hours after exposure. Common symptoms of a ragweed allergy may include one or more of the following symptoms:

  • Coughing or wheezing
  • Itchy, watery eyes
  • Sinus pressure causing facial pain
  • Scratchy throat
  • Swollen, dark-colored skin under the eyes
  • Runny nose or congestion
  • Poor sleep
  • Decreased sense of taste or smell

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