Which action should the nurse implement to help prevent thrombus formation in postsurgical patients?

Choice A reason: Complete bed rest increases stasis, a risk factor for thrombus formation per Virchow’s triad. Immobility slows venous return, promoting clot development, making this choice counterproductive and incorrect for preventing postoperative thrombi. Choice B reason: Light wrapping may provide comfort but does not effectively prevent thrombus formation. Compression stockings are preferred for venous return, and wrapping alone is insufficient, making this choice less effective than ambulation. Choice C reason: Early ambulation promotes venous return, reducing stasis and preventing thrombus formation in postsurgical patients. It enhances circulation, countering Virchow’s triad, and is a standard intervention, making this the correct action to implement. Choice D reason: Pillows under the knees cause venous pooling by flexing joints, increasing thrombus risk. This contradicts measures to enhance circulation, such as ambulation, making it an incorrect choice for thrombus prevention.