This IgE allergy test panel uses a blood sample to determine if you are allergic to four common shellfish allergens: ClamCrabLobsterShrimpMore Americans are allergic to seafood than any other food. In the case of shellfish allergies, the body sees the shellfish as a toxin, rather than a food. The immune system reacts by releasing histamines and antibodies to fight the toxin, causing symptoms include itching, vomiting, stomach cramps, diarrhea, hives, swelling of the throat and tongue, dizziness, and even a weak pulse. Shellfish allergies can be very severe and sometimes even fatal. Did you know: Allergic reactions to shellfish send more food-allergic people to hospital emergency rooms than any other food allergen. Shellfish are classified in two groups: crustaceans (with an outer exoskeleton that you crack or peel, like a crab) and mollusks (with a shell you open, like a clam). Most people who are allergic to one kind of shellfish are allergic to the other. Traditional allergy tests utilize the Skin Prick method (also known as a Puncture or Scratch test) to determine whether an allergic reaction will occur by inserting possible triggers into your skin using a needle prick. If you are allergic to the substance, you are forced to suffer through your body's reaction to the allergen. HealthLabs.com offers an easier, virtually pain-free blood test to determine the allergen status of substances without the irritation of traditional skin prick tests. No painful skin pricksNo fasting necessaryAccurate results within 1 to 2 daysOur quick blood test allows us to use your blood sample to test for allergic reactions externally, rather than causing unnecessary and painful reactions by introducing potential allergens to your system. Tests are administered in approximately 10 minutes or less at any of our 4,500+ nationwide locations. No appointments, no paperwork and no waiting are all part of what makes HealthLabs.com the best option for pain-free and hassle-free allergy testing.