Medicine Which of the following hemodynamic changes is not evident in cardiac tamponade during diastole? A Right atrial and ventricular collapse B Absent y wave on JVP C Biphasic venous return D Elevated pericardial pressure 💡 Explanation Which of the following hemodynamic changes is not evident in cardiac tamponade during diastole? ✓ Correct Answer: C. Biphasic venous return