This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
A I 6-y ear-old girl presented with abdominal pain after administration of a sulfa drug. She was incoherent and suffered a seizure. Which of the following is the most likely possibility? 
Select and explain. 
A. Acute intermittent porphyria, B. Congenital erythropoetic porphyria, C. Adenosine deaminase deficiency, D. HGPase deficiency
A: Acute intermittent porphyria
Answer: A: Acute intermittent porphyria 
Explanation: Ans.a Acuteintermittentporphyria (Re/: Harrison 19/ep2521, 18/ep3168-3169)Acute intermittent porphyria is precipitated by barbiturates, alcohol, exposure to heavy metals, sulfa drugs.Acute Intermittent Porphyria:Precipitated by barbiturates, alcohol, exposure to heary metals, sulfa drugsPresent with nonspecific neurovisceral pain: Abdominal pain, psychiatric disorders, seizures, coma and bulbar Paralysis