Lab test

Japanese Cedar Allergy Test - Tree Pollen

A Japanese cedar IgE blood test detects antibodies against Japanese cedar pollen.

Typical price

From $49

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

A Japanese cedar IgE blood test detects antibodies against Japanese cedar pollen. Japanese cedar is a conifer that releases large amounts of pollen, and sensitized people may experience significant seasonal nasal and eye symptoms when it is airborne. The test is a screening tool to assess sensitization rather than confirm a diagnosis. It may be ordered for recurring seasonal symptoms or as one component of a broader tree pollen panel.

• Japanese cedar pollen-specific IgE Antibodies produced against Japanese cedar pollen proteins; used to assess sensitization.

• Intense seasonal sneezing, nasal congestion, or runny nose during cedar pollen release
• Itchy, watery, or red eyes that recur with airborne pollen
• Cough or wheezing that tracks with a seasonal pollen pattern
• Suspected pollen allergy being evaluated by a clinician
• Testing within a comprehensive tree pollen panel

• No fasting is needed for this IgE antibody test.
• Tell the collector about antihistamines and other allergy medicines, as they can affect testing.
• No dietary or activity restrictions are required.

The test reports Japanese cedar-specific IgE. A low or undetectable level suggests no meaningful sensitization, while an elevated level may indicate the immune system recognizes Japanese cedar pollen and can be associated with seasonal symptoms. A positive result does not by itself prove that symptoms are caused by this pollen. Discuss your results with a healthcare provider, who can interpret them with your history.

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