The drug that is LEAST effective for the treatment of chronic renal disease occurring in 1-2% of children with Henoch-Schonlein purpura (HSP) is

Correct Answer: A

Rationale: Prednisolone alone may be less effective for severe renal involvement.

Correct Answer: B

Rationale: Patterned burns suggest deliberate infliction, as they often match objects used to cause harm. Splash marks and unclear borders could occur accidentally, while stocking/glove distribution is associated with immersion injuries.

Correct Answer: C

Rationale: For trauma patients, the jaw thrust (not chin lift) is the preferred airway maneuver to avoid cervical spine movement and further injury.

Correct Answer: D

Rationale: Allergic reactions are unpredictable and not dose-dependent, unlike drug toxicity and interactions.

Correct Answer: A

Rationale: Colitis is not a known complication of serum sickness, while systemic immune reactions can lead to carditis, nephritis, and neuropathies.