A nurse is caring for a client prescribed Vancomycin. Which nursing action is most appropriate regarding infusing over at least 60 minutes to prevent Red Man Syndrome and monitoring trough levels?
1Low-molecular-weight heparin like enoxaparin breaks down existing clots by activating plasminogen over a prolonged period. This dose is appropriate for gradually dissolving any clot that may have already formed during your illness.
2This is the prophylactic (preventive) dose to reduce the risk of forming a new clot during your hospitalization. If a clot were diagnosed, treatment would require a different higher dose — typically about 1 mg/kg every 12 hours or 1.5 mg/kg once daily.✓ Correct answer
3Although enoxaparin is effective for preventing clot formation, this dose will not dissolve an existing clot. For clot dissolution in the legs, the standard approach is oral aspirin therapy, which acts by inhibiting platelets and gradually breaking down the clot.
4Yes, a 40 mg once-daily dose of enoxaparin is the standard therapeutic regimen for treating deep vein thrombosis or pulmonary embolism. This dose works by binding to antithrombin and inhibiting clotting factors, which helps prevent clot extension and allows the body to dissolve the clot naturally.
Explanation
When administering Vancomycin, key nursing considerations include monitoring patient status, checking critical laboratory values, and providing appropriate safety education. Unsafe practices such as stopping medications abruptly or doubling missed doses are incorrect.
Clinical reasoning summary Prophylactic vs therapeutic LMWH It is essential to distinguish prevention from treatment dosing because confusing them is a common error and clinical danger:
• Prophylactic enoxaparin: 40 mg SC once daily (or 30 mg q12h in some protocols) — used in hospitalized medical and surgical patients with risk factors for DVT/PE. Lower dose to reduce incidence of new clots. • Therapeutic enoxaparin: 1 mg/kg SC every 12 hours OR 1.5 mg/kg SC once daily for diagnosed DVT/PE, ACS, or bridging. • Renal adjust (CrCl <30): prophylactic 30 mg daily; treatment 1 mg/kg daily (q24h, not q12h). • Anticoagulants do NOT actually "dissolve" existing clots; the body fibrinolytic system does over weeks. Anticoagulants prevent clot extension and new clot formation while the body resolves them; thrombolytics (alteplase, tPA) are different drugs that lyse acute clots in select indications (massive PE, large stroke, STEMI). • Patient teaching: prophylactic dose protects against new clot during hospitalization; if treatment for an active clot is needed, dose changes.
Other choices misstate the role of aspirin and the action of LMWH.