CCRN Critical Care Nursing

Answer: C - Knee chest position is done by flexing the hips and knees. This way, there will be a decrease venous return to the heart from the legs; as a result, cardiac workload is decreased. Assuming a sitting position does reduce pressure of the abdominal organs on the diaphragm but does not put enough pressure on the femoral vein and vena cava to sufficiently reduce venous return to the heart.