of or relating to a vesicle or vesicles. 2. having the form of a vesicle. 3. characterized by or consisting of vesicles.
Types of Allergy Blood Tests. Allergy blood tests detect and measure the amount of allergen-specific antibodies in your blood. When you come into contact with an allergy trigger, known as an allergen, your body makes antibodies against it.llergy blood testing is recommended if you: 1  Are using a medicine known to interfere with test results and cannot stop taking it for a few days. 2  This would include antihistamines, steroids, and certain antidepressants.
Your doctor will want to do an allergy test to help determine exactly what is causing your allergy. An allergy skin test puts tiny amounts of allergens onto your skin to see which ones you react to. Or, your doctor may decide to do a blood test, such as the radioallergosorbent test (called RAST) or the ImmunoCap test.ommon allergens include mold and pollen from grasses, ragweed and trees. So, for example, if you are allergic to grass pollen, a small amount of grass pollen will be put into the shot. Allergy shots help your body fight the allergen.