A 20-Year-Old Woman Presents at the Local Emergency Department a Few

A 20-year-old woman presents at the local emergency department a few minutes after receiving an influenza inoculation. She has pale skin, tachycardia, and an arterial pressure of 80/50 mm Hg and has trouble walking. What therapy do you recommend to prevent shock?

A) Packed red cells and plasma infusion
B) Administration of an antihistamine
C) Infusion of a balanced electrolyte solution such as saline
D) Infusion of a sympathomimetic drug
E) Administration of tissue plasminogen activator