text: Pericardiocentesis is the gold standard test for the diagnosis of<unk>  pericarditis. Pericardial biopsy must be performed when we can't find acid fast bacilli in sputum or pericardial fluid. Finding acid fast bacilli on pericardiocentesis is confirmatory for<unk>  pericarditis.
option_0: Tuberculous pericarditis diagnostic study of choice
option_1: Endocarditis diagnostic study of choice
option_2: Tuberculous pericarditis other diagnostic studies
option_3: Myocarditis diagnostic study of choice
option_4: Constrictive pericarditis diagnostic study of choice
option_5: Constrictive pericarditis other diagnostic studies
option_6: Pericarditis other diagnostic studies
option_7: Pericardial effusion other diagnostic studies