Test library
Scallop and Mollusk Allergy Panel
This blood test measures IgE antibodies against scallop proteins. It is used to evaluate possible shellfish sensitization in people who report symptoms after eating scallops or related mollusks.
Order Scallop 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 Scallop Allergy Test- Typical turnaround
- 1-3 business days
- Starting price
- From $49
- Results
- Confidential, online
Quick answer
The Scallop Allergy Test is a blood test that measures IgE antibodies against proteins found in scallops. It is ordered when a person reports symptoms such as itching, hives, swelling, or digestive upset after eating scallops. The test shows whether sensitization to scallop proteins is present and is interpreted with the person's reaction history.
What this test measures
Scallops are bivalve mollusks, a group that also includes clams, mussels, and oysters, and they are distinct from crustaceans such as shrimp and crab. Shellfish allergy can involve proteins such as tropomyosin, and some people react to both mollusks and crustaceans. The test measures IgE antibodies that recognize scallop proteins in the blood.
Only a blood sample is required, and results are reported as a quantitative concentration in kilounits per liter with a graded class. Because shellfish groups share some proteins, panels often include shrimp, crab, lobster, clam, and mussel alongside scallop. This helps show whether the sensitivity is specific to scallops or broader.
People may seek testing after reactions to scallops or other shellfish. Shellfish reactions can sometimes be severe, so any suspected shellfish allergy should be evaluated by a clinician. A qualified healthcare provider interprets the test result with the person's reaction history and other allergy findings.
- Scallop-specific IgE antibodies
- Quantitative IgE to scallop in kU/L
- Allergen-specific IgE antibody class
- Other mollusk IgE when a panel is ordered
- Crustacean IgE when a broader shellfish panel is ordered
- Total serum IgE when included
- Serum eosinophil count when included
Why people order this test
- Evaluate symptoms that follow meals containing scallops
- Check sensitization after reactions to other shellfish
- Add scallop to a broader shellfish allergy panel
- Distinguish mollusk reactivity from crustacean reactivity
- Investigate recurring hives or digestive symptoms after seafood meals
How to prepare
No fasting is required, and no dietary changes are needed beforehand unless the ordering clinician provides other instructions. The blood sample can be collected at any time.
Understanding your results
Results are usually available within one to three business days. A measurable IgE level indicates sensitization to scallop proteins and does not prove that eating scallops will cause symptoms. A qualified healthcare provider interprets the result with the person's history and other shellfish testing.
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Frequently Asked Questions
Are scallops shellfish?
Yes. Scallops are bivalve mollusks, which are one of the two main shellfish groups alongside crustaceans such as shrimp and crab.
Can scallop allergy occur with shrimp allergy?
Some shellfish proteins are shared, so reactivity to both mollusks and crustaceans can occur. A broader panel helps map the pattern.
Are shellfish reactions serious?
Shellfish reactions can range from mild to severe. Any suspected shellfish allergy should be evaluated by a clinician.
Does cooking remove scallop allergens?
Cooking does not reliably remove shellfish allergens, and reactions can occur with cooked scallops. A clinician should assess any suspected reaction.
Do I need to eat scallops before the test?
No. The blood test measures antibodies and does not require recent exposure to scallops.
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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