22. Using the Swan-Ganz catheter to diagnose type of shock O 2 extraction + SVR Septic shock O 2 extraction + SVR Cardiogenic shock O 2 extraction + SVR Hypovolemic shock RVEDV PAP /N PAWP V V Right ventricular failure PAD/PAWP equalised Cardiac tamponade giant ‘v’ waves on PAWP trace Acute mitral regurgitation O 2 step up noted in SvO 2 giant ‘v’ waves on PAWP trace Acute venticular septal defect Pulm Vasc Res PAD>PAWP by >5 mmHg Massive pulmonary embolism PAWP > 25mmHg N/ Cardiogenic pulmonary edema Left ventricular failure Notes PAP/PAWP CVP/RAP CO/CI MAP HR Condition