A 3-month-old precious baby of a keen and highly educated family presented with history of URTI followed by deterioration of level of consciousness and seizure. CT brain shows intracranial bleeding with no evidence of skull fracture. Fundoscopy was normal. Mother gives history of difficult labor but with normal development, mild hypotonia, and macrocephaly which was reassured initially by general Pediatrician. Of the following, the MOST likely diagnosis is

Correct Answer: D

Rationale: Abusive head trauma (AHT) is more likely given the absence of skull fracture, normal fundoscopy, and clinical presentation post-URTI. Residual birth trauma and glutaric aciduria type 1 are less plausible without additional supportive findings.

Correct Answer: B

Rationale: Intrauterine growth retardation is not typically associated with polycythemia

Correct Answer: C

Rationale: Dilute artificial formula can cause total body sodium depletion, leading to hyponatremia due to excessive water intake without adequate sodium replacement.

Correct Answer: A

Rationale: Preterm infants have underdeveloped lungs, and mechanical ventilation or high oxygen pressure can lead to alveolar rupture, causing air to accumulate in the pleural space (pneumothorax), leading to respiratory distress.

Correct Answer: D

Rationale: Hydrocortisone is a low-potency steroid often used for mild cases.