A 1.5-month-old girl, the first child of unrelated parents was referred to our hospital with icterus and edema. She is exclusively breast-fed, she had acholic stools. She was hospitalized for further evaluation. The baby's blood group is A +ve, the mother's blood group is O +ve. What is the most probable diagnosis?

Correct Answer: C

Rationale: Neonatal cholestasis is characterized by prolonged jaundice, acholic stools, and direct hyperbilirubinemia. Causes include biliary atresia, metabolic disorders, and genetic syndromes. ABO incompatibility typically causes hemolysis and indirect hyperbilirubinemia, not acholic stools.

Correct Answer: A

Rationale: Alcohol is the most commonly used substance in episodes of sexual assault, as it impairs judgment and reduces resistance in victims.

Correct Answer: D

Rationale: Smoking marijuana does not increase theophylline levels, while the other options can inhibit its metabolism, leading to increased levels.

Correct Answer: A

Rationale: Aplastic anemia is a type of normocytic normochromic anemia characterized by reduced production of all blood cells due to bone marrow failure. Thalassemia and iron deficiency anemia are microcytic hypochromic.

Correct Answer: C

Rationale: Erythema marginatum is a major Jones criterion for rheumatic fever. It is a non-itchy, evanescent rash with a pale center, usually appearing on the trunk and proximal extremities.