A nurse is reviewing evidence-based practice principles about administration of oxygen therapy with a newly licensed nurse. Which of the following actions should the nurse include?

The correct answer is B: Regulate oxygen via nasal cannula at a flow rate of no more than 6 L/min. This is the appropriate action for administering oxygen therapy to prevent oxygen toxicity. Oxygen should be delivered at the lowest effective flow rate to minimize the risk of complications. Choices A, C, and D are incorrect. A is incorrect because the flow rate should be aligned with the bottom of the ball in the flow meter, not the top. C is incorrect because the reservoir bag of a partial rebreathing mask should be inflated to ensure adequate oxygen delivery. D is incorrect because petroleum jelly should not be used in oxygen therapy due to the risk of fire hazard.