LabInformationLab tests, explained

Crawfish Allergy Test in California

Crawfish Allergy Test is a laboratory test you can order directly. The crawfish allergy test is a blood test that checks for an allergic response to crawfish, a type of shellfish. It is typically ordered when someone has had symptoms like hives, swelling, or difficulty breathing after eating crawfish or other shellfish, or when a doctor needs to confirm a suspected allergy. Across California, part of Pacific, the crawfish allergy test can be ordered directly and collected at a certified site — no referral required.

Sample type
blood
Category
Allergy
Turnaround
1-3 business days
Price
$49
Referral
Not required

The crawfish allergy test is a blood test that checks for an allergic response to crawfish, a type of shellfish. It is typically ordered when someone has had symptoms like hives, swelling, or difficulty breathing after eating crawfish or other shellfish, or when a doctor needs to confirm a suspected allergy.

What it measures

  • Crawfish-specific IgE — Antibodies that your immune system makes if you are allergic to crawfish.
  • Total IgE — A general measure of allergic antibody levels, sometimes included for context.
  • Other shellfish-specific IgE — May test for related shellfish like shrimp or crab to see if you react to more than one.

Who it is for

This test is usually ordered by an allergist, immunologist, or primary care doctor after a patient reports symptoms that suggest a shellfish allergy.

Preparation

No fasting or special preparation is needed for this blood test. You can eat and drink normally before your appointment.

Results and what they mean

Results are reported as a level of specific IgE, often as a number or a class (e.g., low to high). A clinician interprets these results along with your symptoms and history; a positive test alone does not always mean you have a true allergy. This information is not medical advice; discuss your results with a healthcare provider.

Requesting the Crawfish Allergy Test in California

Order online, choose a certified collection site in California, and review results through a secure portal. No referral is required, and orders are processed confidentially. Access across Pacific is uneven, so confirming a site ahead of time is worthwhile.

Frequently asked questions

Do I need to avoid eating crawfish before the test?

No, you do not need to avoid crawfish before the test. The test measures antibodies in your blood, not your immediate reaction to food.

How long does it take to get results?

Results are typically available within 1 to 3 business days.

Can this test tell me if I outgrew a crawfish allergy?

It can help, but a clinician will consider your history and may recommend other tests or a supervised food challenge to confirm.

Is this test covered by insurance?

Many insurance plans cover allergy blood tests when ordered by a doctor. Check with your insurance provider for details.

Crawfish Allergy Test by city in California

All testing in California →   Full Crawfish Allergy Test guide →