A Patient Is Admitted to the Emergency Department with Severe

A patient is admitted to the emergency department with severe abdominal pain with rebound tenderness, anorexia, and chills. The vital signs include temperature 101° F (38.3° C) , pulse 130, respirations 34, and blood pressure (BP) 82/50. Of the following collaborative interventions, which one should the nurse implement first?

A) Infuse 1000 ml of lactated Ringer's solution over 30 minutes.
B) Administer IV ketorolac (Toradol) 15 mg.
C) Give IV ceftriaxone (Rocephin) 1g
D) Obtain a computed tomography (CT) scan of the abdomen with and without contrast.