False Ragweed Allergy IgE Blood Test

What is the purpose of this test?

Order this False Ragweed Allergy IgE Blood Test to measure IgE antibodies in the blood and detect an allergy to false ragweed. False ragweed is one of the most common allergens that cause seasonal allergies in the United States. False ragweed is a bushy summer annual characterized by its grey-green leaves and foliage covered with whitish-grey bristly, short hairs. There are at least 17 ragweed species that grow in North America. The plants thrive in grasslands, dry slopes, coastal areas, sandy flats, forestry regeneration sites, other disturbed sites, and agricultural fields.

False ragweed plants release tiny pollen spores into the air in the late spring and fall months and are wind- and insect-pollinated. In addition, the plant produces burs that are dispersed by sticking to clothing or shoes or animal fur, feet, or feathers. 

What causes an allergy to false ragweed?

False ragweed allergies are triggered by a hypersensitive individual inhaling its pollen. These allergens may trigger a response in their immune system since the body views certain substances as harmful, producing IgE antibodies to combat these invaders. Unfortunately, these antibodies cause histamine to be released, resulting in the symptoms associated with an allergic reaction.

When should I order a False Ragweed Allergy IgE Blood Test?

Individuals may order this test if they have experienced symptoms related to a ragweed allergy. Allergy symptoms vary from one individual to the next ranging from mild to severe reactions, which can occur within minutes to hours after exposure. Common symptoms of a ragweed allergy may include one or more of the following symptoms:

• Congestion
• Coughing
• Hives
• Itching
• Red or watery eyes
• Lightheadedness
• Runny nose
• Sneezing
• Sore or scratchy throat
• Sinus pressure causing facial pain
• Swollen, dark-colored skin under the eyes
• Swelling 
• Trouble breathing or wheezing
• Poor sleep
• Decreased sense of taste or smell

A severe, possibly life-threatening allergic reaction known as anaphylaxis can occur in the most severe cases. An anaphylactic response requires immediate medical attention. Signs or symptoms of anaphylaxis include:

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