In children with physical abuse, when their inflicted trauma is burn injury, the MOST suggestive one is

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: A

Rationale: Dilutional hyponatremia occurs when there is excessive water retention relative to sodium. Conditions like heart failure cause fluid overload, leading to a dilution of serum sodium.

Correct Answer: B

Rationale: Amphetamine toxicity presents with central nervous system stimulation symptoms like delirium, tachycardia, hyperthermia, and seizures.

Correct Answer: B

Rationale: Tachycardia is an early compensatory mechanism in shock before hypotension or altered consciousness occurs.

Correct Answer: C

Rationale: Approximately 90% of infants infected with hepatitis B at birth become chronic carriers due to an immature immune response, leading to prolonged viral persistence.