One of the following is a microcytic hypochromic anemia:

Correct Answer: B

Rationale: Iron deficiency anemia is characterized by microcytic hypochromic red blood cells due to insufficient iron needed for hemoglobin production.

Correct Answer: C

Rationale: Atelectasis results in dull percussion, not normal findings, due to lung collapse and volume loss.

Correct Answer: D

Rationale: All listed treatments are effective for managing ocular allergy symptoms, depending on severity.

Correct Answer: D

Rationale: Hepatobiliary scintigraphy assesses bile flow and is crucial for diagnosing biliary atresia, the most common cause of neonatal cholestasis.

Correct Answer: D

Rationale: Reactive arthritis is characterized by conjunctivitis, urethritis, and arthritis, making 'All of the above' the correct answer.