What is the purpose of this test?
Order this Thistle, Russian Allergy IgE Blood Test, which measures the IgE antibody levels in the blood to detect an allergy to Russian thistle. Russian thistle is a weed that produces allergenic pollen, causing allergies like rhinitis, asthma, and conjunctivitis. It is a major aeroallergen in some regions and has naturalized in North America, Africa, Australia, Europe, and Asia. Russian thistle thrives in semi-arid, salty soil. Originally from Europe and Asia, they grow worldwide in environments such as wastelands, fields, deserts, beaches, and grasslands. Sal k 1 is the most potent allergen marker found in Russian thistle pollen, and it has a high level of cross-reactivity with other species, such as Olea, Kiwi fruit, and Birch pollen.
What causes an allergy to Russian thistle?
Russian thistle 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 Thistle, Russian Allergy IgE Blood Test?
Individuals may order this test if they have experienced symptoms related to a Russian thistle 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 Russian thistle 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
