A 52-year-old woman with a 3-week history of immobility following knee arthroscopy develops acute dyspnea and syncope. She is hypotensive (BP 85/55 mmHg), hypoxic (SpO₂ 88%), and in sinus tachycardia. CTPA confirms massive PE with RV dilatation. Regarding management of hemodynamically unstable PE, all of the following are appropriate EXCEPT:

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