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Perennial Rye Grass (g5) IgE
Quest Diagnostics1 test optionFrom $15.23
Perennial Rye Grass (g5) IgE
Quest DiagnosticsCatalog information reviewed: August 24, 2026 by the Sunridge Medical clinical team.
What this laboratory test evaluates
Perennial Rye Grass (g5) IgE
This test measures the IgE response to perennial rye grass, helping in the diagnosis of allergic diseases. It's a quantitative assay that should be used alongside other clinical information for a comprehensive diagnosis. Allergen-specific serum IgE testing, recognized by leading allergy and immunology academies, is often preferred due to certain conditions that may affect skin testing results or pose risks.
When is this test recommended?This test may be recommended in situations where skin testing for allergies is not suitable, such as:• Widespread skin disease
• Recent use of antihistamines or medications affecting skin test results
• Uncooperative patients
• High risk of severe allergic reaction from skin testing
Important Note:A definitive allergy diagnosis should not rely solely on this test. A trained healthcare professional should consider all clinical and laboratory findings.
What type of sample is required for this test?0.3 mL serum.
Test Resources:For more specific information about perennial rye grass allergens, visit
http://www.phadia.com/en/Products/Allergy-testing-products/ImmunoCAP-Allergen-Information/Grass-Pollens/Allergens/Rye-grass-/
Reference:Bernstein IL, et al. Ann Allergy Asthma Immunol. 2008;100(suppl 3):S1-S148.
Additional test information
This test quantifies an individual’s IgE response to perennial rye grass. It is an in vitro quantitative assay, which is intended to be used in conjunction with other clinical information to aid in the diagnosis of allergic diseases.
Collection and processing
- Sample type: Serum
- Fasting: No
- Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected
How Sunridge uses laboratory information
Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.
Before requesting this test
Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.
Common questions about this laboratory test
- What sample does this test require?
- The listed sample type is Serum. Confirm current collection instructions in the approved order.
- Does this test require fasting?
- The current catalog record lists fasting as: No. Follow the instructions supplied with the approved order.
- How long does laboratory processing usually take?
- Results should be available in 2 – 5 business days after the sample is collected. Timing can change after collection or if a laboratory requires additional review.
About this test
Perennial Rye Grass (g5) IgE
This test measures the IgE response to perennial rye grass, helping in the diagnosis of allergic diseases. It's a quantitative assay that should be used alongside other clinical information for a comprehensive diagnosis. Allergen-specific serum IgE testing, recognized by leading allergy and immunology academies, is often preferred due to certain conditions that may affect skin testing results or pose risks.
When is this test recommended?This test may be recommended in situations where skin testing for allergies is not suitable, such as:• Widespread skin disease
• Recent use of antihistamines or medications affecting skin test results
• Uncooperative patients
• High risk of severe allergic reaction from skin testing
Important Note:A definitive allergy diagnosis should not rely solely on this test. A trained healthcare professional should consider all clinical and laboratory findings.
What type of sample is required for this test?0.3 mL serum.
Test Resources:For more specific information about perennial rye grass allergens, visit
http://www.phadia.com/en/Products/Allergy-testing-products/ImmunoCAP-Allergen-Information/Grass-Pollens/Allergens/Rye-grass-/
Reference:Bernstein IL, et al. Ann Allergy Asthma Immunol. 2008;100(suppl 3):S1-S148.
Additional details
This test quantifies an individual’s IgE response to perennial rye grass. It is an in vitro quantitative assay, which is intended to be used in conjunction with other clinical information to aid in the diagnosis of allergic diseases.
Highlighted health areas
- Allergies and sensitivities
Biomarkers and report focus
The exact analytes and report format can change. Confirm the current contents in the Fullscript order before payment.
- Perennial rye grass (g5) ige