The Health Care Provider Orders the Following Interventions for a 67-Kg

The health care provider orders the following interventions for a 67-kg patient who has septic shock with a BP of 70/42 mm Hg and oxygen saturation of 90% on room air.In which order will the nurse implement the actions? (Put a comma and a space between each answer choice [A,B,C,D,E].)
A) Obtain blood and urine cultures.
B) Give vancomycin (Vancocin) 1 g IV.
C) Start norepinephrine (Levophed) 0.5 mcg/min.
D) Infuse normal saline 2000 mL over 30 minutes.
E) Titrate oxygen administration to keep O₂ saturation >95%.