What non-pharmacologic measure helps prevent DVT in limited-mobility casualties in the field?

• A. Regular repositioning and early mobilization when feasible; use of compression devices if available
• B. Daily anticoagulant pills
• C. Complete bed rest
• D. Frequent hot showers

Answer: (A)

Preventing venous thrombosis in immobilized casualties hinges on improving venous return and reducing venous stasis. The best nonpharmacologic approach is regular repositioning to relieve pressure and stimulate circulation, paired with early mobilization when feasible to activate the calf muscle pump. If available, compression devices provide external pressure that aids venous return and further reduces stasis when movement is limited. In field settings, these measures are favored because they carry no bleeding risk and can be applied with limited resources.

Anticoagulant pills are pharmacologic, not nonpharmacologic, and may be used in appropriate settings but fall outside what this question asks. Complete bed rest increases venous stasis and clot risk, so it’s not protective. Hot showers don’t prevent DVT and aren’t a standard preventive measure.