Which of the following statements regarding the epinephrine auto-injector is correct?
1)The adult auto-injector delivers 0.5 to 1 mg of epinephrine.
2)The auto-injector delivers epinephrine via the subcutaneous route.
3)The epinephrine auto-injector delivers a preset amount of the drug.
4)EMTs do not need physician authorization to use the auto-injector.