Ace the 2026 Clinical Medical-Surgical Exam

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Which statement best describes DVT prophylaxis in hospitalized medical-surgical patients and when it is contraindicated?

Pharmacologic anticoagulation is the only acceptable prophylaxis in all patients

Mechanical prophylaxis is the preferred method and pharmacologic prophylaxis is never used

Antibiotic prophylaxis is used to prevent DVT

Pharmacologic anticoagulation or mechanical prophylaxis; contraindicated with active bleeding or severe thrombocytopenia

DVT prevention in hospitalized medical-surgical patients relies on reducing venous thrombus formation either with pharmacologic anticoagulation or with mechanical methods, chosen based on bleeding risk. Pharmacologic prophylaxis uses agents like low-dose heparin or LMWH to inhibit clot formation, but it raises bleeding risk, so it is avoided when there is active bleeding or severe thrombocytopenia. If anticoagulation is contraindicated, mechanical prophylaxis—such as intermittent pneumatic compression devices or compression stockings—helps prevent venous stasis and reduces DVT risk. In some patients, both approaches may be used when the bleeding risk is acceptable. Antibiotics do not prevent DVT, so they are not appropriate.