MCQ IN MEDICINE

Detailed explanation-1: -The name ‘anaphylaxis’ means ‘without protection’ and indeed, the condition is caused by a massive over-reaction of the body’s protection (immune) system. Luckily, severe anaphylactic reactions are rare but can be rapidly fatal. The most common reactions are to drugs such as penicillin or insect stings.

Detailed explanation-2: -Therefore, in anaphylaxis, vasoconstriction of pulmonary and coronary arteries contributes to the reduction of myocardial contractility and may be a major cause of death (196, 211, 212).