Test library
Red Cedar Allergy Blood Test
A Red Cedar allergy blood test measures IgE antibodies against red cedar pollen. Red cedar is a juniper-family tree, and its pollen can trigger seasonal allergy symptoms in sensitized people when it is in season.
Order Red Cedar Tree Allergy Test
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Red Cedar Tree Allergy Test- Typical turnaround
- 1-3 business days
- Starting price
- From $49
- Results
- Confidential, online
Quick answer
The red cedar allergy test measures immunoglobulin E antibodies against pollen from the red cedar tree. Red cedar belongs to the juniper family, and its pollen can trigger classic allergy symptoms such as sneezing, nasal congestion, and itchy eyes. The test is a blood-based option for evaluating tree pollen sensitivity. A qualified healthcare provider interprets the result with the person's symptom pattern.
What this test measures
Red cedar is a common name for several juniper-family trees that produce abundant pollen. The pollen grains are small and light, which lets them travel on the wind and reach people some distance from the trees. Sensitized individuals may notice sneezing, a stuffy or runny nose, itchy and watery eyes, and occasionally coughing when the pollen is in season.
The test measures allergen-specific IgE against red cedar pollen in a serum sample using a laboratory immunoassay. It reports whether antibodies are present and may provide a quantitative level or reactivity class. Because juniper and cedar pollens share allergens, results are commonly reviewed together with mountain cedar and related tree pollen tests.
A positive result indicates sensitization to red cedar pollen. It does not confirm that symptoms are caused by this tree, since other pollens and indoor allergens may also be at play. A healthcare provider combines the result with the timing of symptoms and the environment before recommending any next steps.
- Red cedar (Juniperus virginiana) specific IgE
- Total serum IgE
- Quantitative allergen-specific IgE level
- IgE reactivity class for red cedar
- Cross-reactive juniper and cedar allergens
- Related tree pollen allergens within the panel
Why people order this test
- Investigate seasonal allergy symptoms linked to cedar trees
- Clarify sensitization when a tree pollen panel is positive
- Compare reactivity across cedar and juniper species
- Assess symptoms that appear near cedar trees or in cedar-heavy areas
- Provide objective information before discussing management with a provider
How to prepare
No fasting is required. A blood sample is drawn from a vein, usually at the arm. Follow the laboratory's instructions, especially if this test is part of a larger allergy panel.
Understanding your results
Results are usually available within one to three business days. The report shows the specific IgE level and reactivity class for red cedar. An elevated value indicates sensitization, and a healthcare provider interprets it with the person's symptoms and exposure history.
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Frequently Asked Questions
What is red cedar?
Red cedar is a common name for juniper-family trees that release pollen. Their pollen is a recognized cause of seasonal allergy symptoms in some people.
Is red cedar the same as mountain cedar?
They are related juniper-family trees, but they are different species. Both release pollen that can trigger similar symptoms, and tests may be ordered together.
How is the test performed?
A small blood sample is drawn and analyzed for IgE antibodies that react to red cedar pollen.
Do I need to fast?
No fasting is required for this blood test.
What does a positive result mean?
It shows sensitization to red cedar pollen, not necessarily that it is the cause of your symptoms. A provider reviews it with your history.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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