A 19 year old male was stung multiple times by fire ants. he is experiencing obvious signs and symptoms of anaphylactic shock. You administer 100% oxygen and give him epinephrine via subcutaneous injection. Upon reassessment, you determine that his condition has not improved. You should:
a. request a paramedic unit that is stationed approximately 15 miles away
b. repeat the epinephrine injection after consulting with medical control
c. give it some more time for epinephrine to work
d. consider that he may actually be experiencing an acute asthma attack