When entering the room to administer scheduled daily medications, the nurse observes the client leaning forward and using pursed-lip breathing. Which action is most important for the nurse to take?

A. Auscultate the lungs for evidence of wheezing: Lung auscultation is helpful in assessing respiratory status, but evaluating oxygen saturation is more urgent in this situation. It provides an immediate, objective measure of gas. B. Quickly administer scheduled medications: Administering medications without assessing the client’s respiratory status may be unsafe. The client’s posture and breathing pattern suggest respiratory distress, which should be evaluated before giving medications. C. Ask the client if an anxiolytic is needed: Anxiety may worsen breathing, but the client’s body language likely indicates a physiological rather than psychological problem. Assessing oxygenation is more important than addressing anxiety in this context. D. Evaluate the client’s oxygen saturation: Pursed-lip breathing and forward-leaning posture are compensatory mechanisms seen in respiratory distress, often in clients with COPD. Assessing oxygen saturation immediately helps determine the severity of hypoxia and guides appropriate interventions.