Q. A 63-year-old man undergoes cardiac catheterization to assess his hemodynamic status prior to cardiac transplantation. Findings include: Pulmonary artery pressure (PAP) = 35 mm Hg Cardiac output (CO) = 4 L/min Left atrial pressure (LAP) = 15 mm Hg Right atrial pressure (RAP) = 10 mm Hg Which of the following values is his PVR?