Your Patient Is a 46-Year-Old Male Who Is Unconscious on His

Your patient is a 46-year-old male who is unconscious on his front lawn after being stung by a bee. You note angioneurotic edema. HR = 132, BP = 76/40, RR = 24 and shallow. You should first:

A) administer high-concentration oxygen with a nonrebreather mask or similar device.
B) administer epinephrine 1:1000 SC.
C) start an IV of NS wide open and administer epinephrine 1:10,000 IV.
D) intubate the patient.