The nurse is caring for a client with metabolic acidosis from diabetic ketoacidosis. Heart rate is 124; blood pressure is 90/44 (mean arterial pressure of 59); respiratory rate is 32 and pulse ox is 97%. What would be a priority collaborative intervention?

1. Oxygen at 2 liters per nasal cannula
2. Intravenous normal saline at 200 mL/hour
3. Intravenous sodium bicarbonate
4. Placement of peripherally inserted central catheter