Final answer:
Perform arterial blood gas analysis to assess the patient's oxygenation status during thrombolytic therapy for pulmonary emboli.
Step-by-step explanation:
The best way for the nurse to assess the patient's oxygenation status during thrombolytic therapy for pulmonary emboli is to perform arterial blood gas analysis. This test measures the partial pressure of oxygen (PaO2) in the blood, providing an accurate assessment of the patient's oxygen levels. Monitoring blood pressure and heart rate are important for overall patient assessment but do not specifically assess oxygenation status. Changes in skin color may also be an indicator of oxygenation status, but they are less reliable than arterial blood gas analysis.
Learn more about Arterial blood gas analysis