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: Social & Preventive Medicine
[{'content': 'For tuberculosis screening which test is done - \nSelect and explain. \nA. Sputum microscopy, B. Sputum culture, C. Tuberculin test, D. Lymph node biopsy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is \'c\' i.e., Tuberculin test "Tuberculin test is done with purified protein derivation (PPD)and impoant screening test for TB".Teste for tuberculosis screening are :-Tuberculin test (Mantoux test).Interferon-gamma release assay (e.g. Quantiferon TB assay).', 'role': 'assistant'}]