DVT is a blood clot that forms in a major vein of your body, most commonly in your legs. It can also occur in your arms. * Swelling in the affected leg or arm, which can include swelling in the foot or ankle. It is most typically in one leg or arm.
Allergen immunotherapy is appropriate for patients suffering from immunoglobulin E (IgE)âmediated allergic diseases such as seasonal allergic rhinitis, perennial rhinitis, allergic asthma, and insect venomanaphylaxis.
What It Is. An allergen-specific immunoglobulin E (IgE) blood test is done to check whether a person is allergic to a particular substance. An allergic reaction occurs when the immune system overreacts to something, often in the environment, that's harmless to most people.