This is acute pericarditis (FA2020 p313) for the following reasons:
Pain exacerbated by inspiration and decreased by leaning forward
Friction rub (harsh scratchy sound present in both systole and diastole)
Associated with rheumatoid arthritis (autoimmune conditions are associated with fibrinous pericarditis)
No true pulsus paradoxus (pulsus paradoxus is >10mmHg decrease in systolic blood pressure during inspiration and is associated with cardiac tamponade though it can be seen in consrtrictive pericarditis as well)
leap1608In contrast to pericarditis, there will be decreased heart sounds in cardiac tamponade (since the heart is now insulated by the fluid collection in the pericardial space) +
submitted by โcassdawg(1781)
This is acute pericarditis (FA2020 p313) for the following reasons: