Which combination best reflects perioperative thromboembolism prophylaxis?

• A. Pharmacologic prophylaxis plus mechanical measures as indicated by risk
• B. Pharmacologic prophylaxis only for all
• C. Mechanical measures only for all
• D. No prophylaxis if low risk

Answer: (A)

In perioperative care, preventing thromboembolism works best when you combine medication-based prevention with physical methods, and tailor it to how high a patient’s risk is. The strongest approach is to use pharmacologic prophylaxis alongside mechanical measures when the patient’s risk profile indicates it. Medications like heparin or low-molecular-weight heparin reduce clot formation, while mechanical methods (compression devices or stockings) improve blood flow and lessen venous stasis. Using both offers added protection, especially for those at higher risk, while still allowing for caution in patients who have bleeding risk or other contraindications.

Choosing pharmacologic prophylaxis for everyone would unnecessarily increase bleeding risk in some patients. Relying on mechanical measures alone for everyone would leave higher-risk patients inadequately protected from clots. Skipping prophylaxis entirely for those deemed low risk ignores that risk is not zero and that even low-risk patients can develop DVT or PE.