Which condition is described as a serious respiratory reaction with constricted airways leading to breathing difficulties?

• A. Asthma
• B. Urticaria
• C. Food allergies
• D. Anaphylaxis

Answer: (A)

Airway constriction with breathing difficulties is a hallmark feature of asthma, a chronic inflammatory disease of the airways that causes bronchoconstriction during attacks. In an asthma episode, the muscles around the airways tighten, the lining swells, and mucus is produced, narrowing the passage and making it hard to breathe. This fits the description of a serious respiratory reaction where airways become constricted and breathing is impaired.

Urticaria involves hives on the skin, not the lungs. Food allergies can trigger various reactions, but the classic immediate respiratory narrowing described here points to asthma. Anaphylaxis also causes breathing problems, but it is a systemic, life-threatening reaction with symptoms beyond the lungs, such as throat swelling, hives, and dizziness; the scenario focuses on airway constriction in the lungs rather than a whole-body response, which makes asthma the best match.