A client with a history of Addison's disease is experiencing weakness and headache. The vital signs are blood pressure of 100/60 and heart rate of 80. Laboratory values are Na 130, potassium 4.8, and blood glucose 70. Which of the following would the nurse expect to administer?
a. IV total parenteral nutrition and insulin coverage
b. IV 5% dextrose and dopamine
c. IV normal saline and glucocorticoids
d. IV lactated Ringer's solution and packed cells