Drug Rash with Eosinophilia and Systemic Symptoms (DRESS) can be caused by all the following EXCEPT

Correct Answer: C

Rationale: Allopurinol is not a major cause of DRESS syndrome, whereas anticonvulsants and sulfonamides are common triggers.

Correct Answer: C

Rationale: Hyperventilation is the compensatory mechanism for metabolic acidosis, leading to increased CO2 elimination and normalization of pH.

Correct Answer: A

Rationale: Many developing countries struggle with providing access to clean water, which affects public health and economic productivity.

Correct Answer: D

Rationale: Alkali therapy can cause hypernatremia and skin slough but not hyperkalemia. The other options are potential side effects.

Correct Answer: D

Rationale: Severe coarctation leads to critical left ventricular outflow obstruction, causing neonatal heart failure.

Correct Answer: D

Rationale: Calcium gluconate stabilizes cardiac membranes, preventing life-threatening arrhythmias without affecting serum potassium levels.

Correct Answer: D

Rationale: Aspirin is not a common cause of serum sickness, unlike the other options listed.

Correct Answer: D

Rationale: Inhaled β₂-agonists are recommended for intermittent asthma symptoms as needed for relief.

Correct Answer: B

Rationale: Inhaled short-acting beta-agonists (SABAs) are the preferred rescue medication for acute asthma symptoms, as they provide rapid relief by relaxing airway muscles.