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: Ophthalmology
[{'content': 'A 10-year boy present with bilateral chronic uveitis. Which investigation should be ordered – \nSelect and explain. \nA. Hemogram, B. X–ray of sacroiliac joint, C. HIV test, D. Mantoux test', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Investigations used in the evaluation of uveitis\nAnterior\nAcute:- Urine for WBC, CBC, ESR, CRP, X-ray sacroiliac joint, HLA B-27, Chest X-ray, VDRL & FTA-ABS for syphilis, Serum ACE, Mantoux test\nChronic:- Gonioscopy, Antinuclear antibody\nPosterior\nAcute:- None\nChronic:- Eosinophil count, serum ACE, ELISA for toxoplasma & toxocariasis, chest X-ray, Mantoux test,\nVirus cultures, serum antibodies in suspected cases of CMV, HSV, VZV', 'role': 'assistant'}]