Which medical emergency may involve administration of adrenaline, oxygen, hydrocortisone and chlorphenamine?

• A. Anaphylaxis
• B. Seizures
• C. Hypoglycaemia
• D. Asthma attack

Answer: (A)

Anaphylaxis is a rapid, life-threatening allergic reaction that can block the airway and drop blood pressure. Adrenaline (epinephrine) is the main treatment because it quickly reverses swelling, opens the airways, and improves circulation by narrowing blood vessels. Oxygen is given to ensure sufficient oxygen in the bloodstream when breathing is compromised. Hydrocortisone, a corticosteroid, helps reduce the inflammatory response and can prevent a later rebound reaction. Chlorphenamine, an antihistamine, helps relieve symptoms driven by histamine such as itching, hives, and swelling. This combination is a classic emergency response in settings like dental clinics where anaphylaxis may occur. Other emergencies are managed with different drugs tailored to their specific needs, so the four-drug combination clearly points to anaphylaxis.