Allergy Screen (Shellfish) Blood Test
    Allergy Screen (Shellfish) Blood Test
    Allergy Screen (Shellfish) Blood Test
    Allergy Screen (Shellfish) Blood Test

Allergy Screen (Shellfish) Blood Test


See if you could be allergic to shellfish, including crabs, prawns, and scallops.

Results estimated in 5 working days

View 1 Biomarkers

How do you want to take your sample?

Please choose one option below
  • Book a venous draw at a clinic   +£35.00

    Visit one of our national clinic partners for a nurse to take your venous blood sample from a vein in your arm. We’ll email you instructions on how to book after we’ve processed your order.
  • Book a venous draw at home with a nurse +£59.00

  • Self-arrange a professional sample collection Free

Allergy Screen (Shellfish) Blood Test

Find your nearest clinic
Key: You are here Appointment required Walk-in service

Is it for you?

Are you experiencing symptoms of a shellfish food allergy, such as hives, vomiting, and lip or facial swelling?

Our Allergy Screen (Shellfish) Blood Test checks to see if you are allergic to eight commonly eaten shellfish, including crab and prawns.

Biomarker table


Immunoglobulin E

Learn more

Immunoglobulins or antibodies, play an important role in the immune system and help fight against harmful bacteria and viruses in the body. There are five classes of antibodies and several subclasses. In those that have an allergy, their immune system overreacts to a harmless allergen (such as food, grass or animal dander) by producing IgE. This reaction usually causes irritation to the nose, lungs, throat and skin. The allergen-specific IgE antibody test is used to check for an allergy to a specific allergen. It measures the amount of IgE antibody in the blood targeted for a suspected allergen.
Blood testing made easy

How it works

Your personalised, actionable health results are only a few clicks away. Order your test, take and post your sample, then view your results online with our doctors' comments.

Your results, simplified

Track, improve, and monitor your health over time

MyMedichecks is your personal online dashboard where you can view your results, access clear and simple explanations about individual health markers, monitor changes in your health, and securely store information about your medical history, lifestyle, and vital statistics.


Who should take this test?

Our test is ideal as part of an initial investigation screen if you have signs of IgE-mediated allergies, such as hives, redness of the skin, vomiting, and lip or facial swelling, which develop quickly after exposure to a shellfish allergen.

Which shellfish are included?

The shellfish tested are:

  • -Clams
  • -Crab
  • -Crayfish
  • -Octopus
  • -Lobster
  • -Prawn
  • -Scallops
  • -Squid

What is an Allergy Screen (Shellfish) Blood Test?

Our shellfish allergy screen provides an analysis of eight commonly eaten shellfish which can cause IgE-mediated allergies. You'll also get a total measure of your immunoglobulin E, which is often raised if you have an IgE-mediated allergy.

Our latest customer reviews