The standard method for diagnosing food allergy, used to determine whether a child can eat a food safely, is

Correct Answer: A

Rationale: Oral food challenges are the gold standard for diagnosing food allergies.

Correct Answer: A

Rationale: Lichenification due to chronic scratching commonly appears in the flexural areas.

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: Immediate activation of basic life support is crucial for increasing survival chances in pediatric emergencies.

Correct Answer: B

Rationale: Renal tubular acidosis causes normal anion gap acidosis because it results from impaired renal acid excretion rather than accumulation of organic acids.