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Crayfish (rf320) IgE
Quest Diagnostics1 test optionFrom $15.23
Crayfish (rf320) IgE
Quest DiagnosticsCatalog information reviewed: August 24, 2026 by the Sunridge Medical clinical team.
What this laboratory test evaluates
Crayfish (rf320) IgE
This test checks for specific IgE antibodies to determine if you have an allergy to crayfish. It's a sensitive test used to predict if you're likely to have an immediate allergic reaction upon exposure to crayfish.
What patients is this test right for?This test is suitable for individuals who suspect they may have an allergy to crayfish, especially if they have experienced symptoms of an allergic reaction after eating crayfish or being in contact with it.
Symptoms of Crayfish Allergy:• Itching or hives
• Swelling of the lips, face, tongue, and throat or other parts of the body
• Wheezing, nasal congestion or trouble breathing
• Abdominal pain, diarrhea, nausea or vomiting
• Dizziness, lightheadedness or fainting
What type of sample is required for this test?0.3 mL serum.
Test ResourcesFor more information on allergy testing and management, consult your healthcare provider or visit reputable health websites.
Additional test information
Crayfish (rf320) IgE – This test checks for specific IgE antibodies to determine if you have an allergy to crayfish. It's a sensitive test used to predict if you're likely to have an immediate allergic reaction upon exposure to crayfish.
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
Crayfish (rf320) IgE
This test checks for specific IgE antibodies to determine if you have an allergy to crayfish. It's a sensitive test used to predict if you're likely to have an immediate allergic reaction upon exposure to crayfish.
What patients is this test right for?This test is suitable for individuals who suspect they may have an allergy to crayfish, especially if they have experienced symptoms of an allergic reaction after eating crayfish or being in contact with it.
Symptoms of Crayfish Allergy:• Itching or hives
• Swelling of the lips, face, tongue, and throat or other parts of the body
• Wheezing, nasal congestion or trouble breathing
• Abdominal pain, diarrhea, nausea or vomiting
• Dizziness, lightheadedness or fainting
What type of sample is required for this test?0.3 mL serum.
Test ResourcesFor more information on allergy testing and management, consult your healthcare provider or visit reputable health websites.
Additional details
Crayfish (rf320) IgE - This test checks for specific IgE antibodies to determine if you have an allergy to crayfish. It's a sensitive test used to predict if you're likely to have an immediate allergic reaction upon exposure to crayfish.
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.
- Crayfish (rf320) IgE