Problem: Long-term immobility can cause a number of cardiovascular abnormalities in a patient because it prevents movement and reduces the body's capacity to circulate blood. The primary cardiovascular modifications that might be expected are decreased venous return, reduced cardiac output, and orthostatic hypotension. According to the National Library of Medicine, "Prolonged bed rest and immobilization inevitably lead to complications. Cardiovascular complications include an increased heart rate, decreased cardiac reserve, orthostatic hypotension, and venous thromboembolism? Need Assignment Help?