A nurse in the emergency department is caring for a client who has COPD with exacerbations. Which of the following interventions should the nurse provide?

A. Oxygen via nasal cannula at 10 L/min is too high for COPD clients and may suppress their respiratory drive; oxygen should be administered cautiously, usually starting at low flow (1–3 L/min) and titrated to maintain target saturation (usually 88-92%). B. Administering a bronchodilator is appropriate to relieve bronchospasm and improve airflow during a COPD exacerbation. C. Loop diuretics are not first-line treatment for COPD exacerbations unless there is concurrent fluid overload or heart failure. D. The lateral recumbent position is not standard for COPD exacerbations; clients typically benefit from sitting upright or semi-Fowler’s position to ease breathing.