Scallop Allergy Test
This page explains the scallop allergy test, what it measures, and how to arrange it. A scallop allergy test checks your blood for antibodies that may indicate an allergic response to scallops. It is usually ordered when someone has had symptoms like hives, swelling, or breathing problems after eating scallops or other shellfish.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
A scallop allergy test checks your blood for antibodies that may indicate an allergic response to scallops. It is usually ordered when someone has had symptoms like hives, swelling, or breathing problems after eating scallops or other shellfish.
What it measures
- Specific IgE to scallop — The main marker; it measures antibodies your immune system may make against scallop proteins.
- Total IgE — A general allergy antibody level; sometimes included to help interpret the specific result.
- Cross-reactive shellfish markers — Proteins shared with shrimp, crab, or lobster may be checked because reactions can overlap.
- Tropomyosin — A common shellfish protein that often causes allergic reactions.
Who it is for
A primary care clinician or allergist typically orders this test after a suspected reaction to scallops. It may also be used to monitor known shellfish allergy over time.
Preparation
No fasting or special preparation is needed. Tell your clinician about any medications you take, especially antihistamines, as they may affect some allergy tests.
Results and what they mean
Results are reported as a level or class for each marker, often from negative to strongly positive. A positive result does not always mean you are allergic, and a negative result does not rule out allergy. A clinician interprets the results with your symptoms and history. This is general information, not medical advice.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the scallop allergy test is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
Do I need to avoid scallops before the test?
No. This blood test does not require you to eat scallops beforehand.
How long does it take to get results?
Most results are available within 1 to 3 business days.
Can this test tell me if I outgrew a scallop allergy?
It can help track changes, but only a clinician can decide if it is safe to try scallops again.
Is this test painful?
It uses a standard blood draw, which feels like a brief pinch.