The central venous pressure (CVP) is slow in-: (A) Pericardial effusion, (B) Massive pulmonary embolism, (C) Acute left ventricular failure, (D) Tension pneumothorax
Answer is C. Factors Increasing Central Venous Pressure A decrease in cardiac output either due to decreased hea rate or stroke volume (e.g., in ventricular failure) results in blood backing up into the venous circulation (increased venous volume) as less blood is pumped into the aerial circulation. Ref Davidson 23rd edition pg 453