Non-specific markers of inflammation are generally elevated in pericarditis. This include the CBC, elevated C-reactive protein, ESR.  The cardiac troponin is elevated if there is injury to the underlying myocardium, a condition termed myopericarditis.  Diagnostic pericardiocentesis and biopsy help in identifying an underlying infectious or malignant process.
Cardiac tamponade laboratory findings
Cardiac tamponade physical examination
Cardiac tamponade electrocardiogram
Cardiac tamponade cardiac catheterization
Papillary muscle rupture chest x ray
Cardiac tamponade MRI
Cardiogenic shock echocardiography or ultrasound
Cardiogenic shock laboratory findings