Catfish Allergy Test
This page explains the catfish allergy test, what it measures, and how to arrange it. A catfish allergy test is a blood test that checks whether your immune system reacts to proteins found in catfish. It is usually ordered when someone has had allergy symptoms after eating catfish or other fish, or when a doctor wants to confirm which fish triggers symptoms.
- Sample type
- blood
- Category
- Allergy
- Turnaround
- 1-3 business days
- Price
- $49
- Referral
- Not required
A catfish allergy test is a blood test that checks whether your immune system reacts to proteins found in catfish. It is usually ordered when someone has had allergy symptoms after eating catfish or other fish, or when a doctor wants to confirm which fish triggers symptoms.
What it measures
- Catfish-specific IgE — An antibody that can rise when your body treats catfish proteins as a threat.
- Total IgE — A general measure of allergy-related antibody in your blood, sometimes included for context.
- Other fish-specific IgE — Checks reactions to related fish such as cod, salmon, or tuna to see if the allergy is broad.
- Cross-reactive markers — Proteins that may explain reactions to more than one type of fish.
Who it is for
A primary care doctor, allergist, or pediatrician typically orders this test after a history of symptoms such as hives, swelling, or breathing changes around fish. It may also be used when a skin test is not practical.
Preparation
No fasting is required. Tell the lab about any antihistamines or other medicines you take, since some can affect allergy testing.
Results and what they mean
Results are reported as a level of catfish-specific IgE, often grouped as negative, low, moderate, or high. A clinician interprets the number alongside your symptoms and history, because a positive result alone does not always mean you will react. This is general information, not medical advice; discuss your results with a qualified clinician.
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 catfish 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
Does this test hurt?
It uses a standard blood draw, so you may feel a brief pinch when the needle goes in.
How long do results take?
Most results are ready in 1 to 3 business days, though the lab and your clinician's schedule can affect timing.
Can I eat before the test?
Yes. Fasting is not needed for this test unless your clinician asks you to fast for other tests.
What if my result is positive?
A positive result means your blood shows antibody activity to catfish. Your clinician will explain what it means for you and whether you need to avoid certain fish.