Fibrinous pericardial effusion with tamponade on POCUS 80F w AFib w pacemaker on warfarin presents with n/v x 4. Initial BP 100/40, HR 85, then pt becomes altered, hypotensive w MAP 50s, HR 115. Check out this parasternal short axis view. ... Fibrinous pericardial effusion w tamponade. RV collapsed around pacer wire. INR >12. Pt treated w Vit K + FFP, taken emergently to cath lab. >700 ml of bloody fluid removed. Pt discharged in good condition 4 d later. Other causes of fibrinous effusion: TB, cancer, bact infection. #Fibrinous #pericardial #effusion #tamponade #hemorrhagic #POCUS #Clinical #Echocardiogram #PSAX #Cardiology