Understanding Lab Tests for Rhinitis
Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
Rhinitis is inflammation of the nasal mucous membrane that causes symptoms like sneezing, runny nose, nasal congestion, and itchy or watery eyes. While rhinitis can have various causes, allergic rhinitis is one of the most common forms and can be accurately diagnosed through specialized blood tests that identify specific allergen triggers.
Top Recommended Test
Hemp Western Water (Acnida tamariscina) IgE
This test identifies IgE antibodies against Hemp Western Water (Acnida tamariscina), a plant allergen. Elevated levels suggest an allergic sensitivity to this environmental allergen, which can trigger classic allergic rhinitis symptoms including runny or stuffy nose, sneezing, and itchy, watery eyes when you encounter this plant or its pollen.
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How Blood Tests Help Diagnose Allergic Rhinitis
Allergen-specific IgE blood tests measure the levels of immunoglobulin E antibodies that your immune system produces in response to specific allergens. Elevated IgE levels indicate that your body has developed an allergic sensitivity to particular substances, which can trigger rhinitis symptoms when you're exposed to them.
Other Relevant Tests
Allergen Specific IgE Gum Xanthan
This test measures IgE antibodies specific to gum xanthan, a common food additive and industrial substance. Elevated levels can indicate an allergic sensitivity that may trigger rhinitis symptoms when exposed to products containing this allergen, helping to identify a specific cause of your nasal inflammation.
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Phthalic Anhydride (k79) IgE
Phthalic anhydride is a known respiratory irritant commonly found in industrial settings and some consumer products. This test detects IgE antibodies specific to this chemical compound. High levels indicate an allergic reaction to phthalic anhydride, which can directly cause rhinitis and other respiratory symptoms upon exposure.
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Understanding Your Results
Positive results from these allergen-specific IgE tests can help identify the specific triggers causing your rhinitis symptoms. This information is valuable for developing an effective treatment plan, which may include allergen avoidance strategies, medications, or immunotherapy to reduce your sensitivity to the identified allergens.
Important Considerations
The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for proper diagnosis and treatment of rhinitis symptoms.
