A 4-year-old boy presents with failure to thrive, irritability, bloating, and a symmetrical rash on his elbows and knees. Transglutaminase IgA antibodies are positive. What is the most likely diagnosis?

Correct Answer: A

Rationale: Dermatitis herpetiformis is a cutaneous manifestation of celiac disease and is associated with positive transglutaminase IgA antibodies.

Correct Answer: C

Rationale: Hemophilia A is due to Factor VIII deficiency, leading to prolonged activated partial thromboplastin time (APPT), while PT and bleeding time remain normal.

Correct Answer: A

Rationale: Iron deficiency anemia typically presents as microcytic hypochromic anemia due to reduced hemoglobin production. Normocytic normochromic anemia is seen in conditions like aplastic anemia and hemorrhagic anemia.

Correct Answer: B

Rationale: A patient with eye opening to pain (E2), confused speech (V4), and localizing to pain (M5) has a GCS of 9.

Correct Answer: D

Rationale: Woods lamp is primarily used for detecting skin conditions and fungal infections, not relevant for diagnosing ASD. Other tests like hearing assessments and brain imaging help rule out alternative causes.