A patient who is found lying in a pool of blood from a leg incision that has opened is restless and confused. The nurse calls for help and takes vital signs. Which of the following treatments for...

A patient who is found lying in a pool of blood from a leg incision that has opened is restless and confused. The nurse calls for help and takes vital signs. Which of the following treatments for shock would the nurse anticipate being ordered first? 1. Crystalloid IV fluids 2. Oxygen 3. Vasopressor medications 4. One unit of packed red blood cells