Test: Allergy - Class 7 MCQ

Milk protein allergy is more prevalent in children, often outgrown as they age. While other food allergies can occur, milk allergies are particularly common in early childhood.

Pollen from blossoming flowers is the primary trigger for seasonal allergies in spring, causing symptoms like sneezing and nasal congestion.

Dust is identified as one of the common allergens that can trigger asthma symptoms, leading to wheezing and difficulty in breathing due to the constriction of airways.

Anti-allergy shots, also known as immunotherapy, help reduce sensitivity to specific allergens over time, making allergic reactions less severe when exposure occurs.

Clemens von Pirquet, a Viennese pediatrician, coined the term "allergy" in 1906 to describe the hypersensitivity reactions observed in some patients. The term is derived from Greek, meaning "other work," reflecting the immune system's improper activation.

Anaphylaxis is a severe allergic reaction that can occur in response to medications, such as penicillin, and can lead to life-threatening symptoms if not treated promptly.

Diabetes is not classified as an allergic disease. Allergic diseases, including hay fever, asthma, and dermatitis, arise from an overactive immune response to generally harmless substances known as allergens.

The skin prick test is a widely used method for diagnosing allergies, where small amounts of allergens are introduced into the skin to observe for allergic reactions, such as redness or hives.

Anaphylaxis is a severe and potentially life-threatening allergic reaction that can occur suddenly, causing symptoms like difficulty breathing, swelling, and low blood pressure. It requires immediate medical attention.

Food allergies can result in symptoms including vomiting and hives, with certain foods like nuts and seafood commonly triggering such reactions.

Airborne allergens, such as pollen and dust, typically enter the body through the nose. This route is responsible for many respiratory symptoms associated with allergies.

Immunoglobulins, particularly IgE, are the primary antibodies involved in allergic reactions. They bind to allergens and trigger the release of histamine from mast cells, leading to allergic symptoms.

Allergy blood tests can be performed on individuals of all ages and those with various skin conditions. They measure specific antibodies in the blood, helping to identify allergens without the need for skin exposure.

Wheezing is a common symptom of asthma that can be triggered by allergens. It occurs due to the constriction of airways, making it difficult to breathe, and is often exacerbated by allergens such as pollen or dust.

Histamine plays a critical role in allergic reactions by causing inflammation and other allergic symptoms, such as itching, redness, and bronchial constriction, which are common in conditions like asthma.