PCC Field Medical Training Battalion – West (FMTB-W) Block 4 Practice Test

Regular leg movement activates the calf-muscle pump, which helps push venous blood back toward the heart. In an unconscious patient, lack of movement causes venous stasis in the legs, significantly increasing the risk of deep vein thrombosis. Doing foot pumps, ankle circles, and leg raises every two hours keeps venous return ongoing, reducing stasis and the chance of clot formation. This interval is chosen to provide frequent, consistent stimulation without excessive activity; longer gaps allow stasis to develop, increasing DVT risk.

These exercises primarily target preventing DVT rather than edema, contractures, or pneumonia. Edema can be influenced by more factors and interventions; contractures are best addressed with broader ROM and positioning; pneumonia prevention focuses on chest mobility, coughing/deep breathing, and regular turning.