Your Patient Is a Conscious and Alert 22-Year-Old Female Who

Your patient is a conscious and alert 22-year-old female who was stung by a hornet. She states that she has "allergies to bee stings" and has been told that she could die if stung. Your physical examination reveals a 1-cm-diameter, red, edematous area where she was stung on the left forearm. Her skin is warm and dry, and her lung sounds are clear and equal bilaterally. HR = 12 and regular, BP = 122/82, RR = 12 and regular, SaO₂ = 98%. The most appropriate treatment for this patient would include:

A) 100 percent oxygen via nonrebreather mask 15 lpm, IV of NS 1-2 L, epinephrine 1:1000 0.3 mg SC, diphenhydramine 25 mg IV.
B) IV as soon as possible with a crystalloid solution.
C) 15 lpm oxygen by nonrebreather, epinephrine 1:1000 0.3 mg SC, diphenhydramine 25 mg IV, transport.
D) transport only.