Question: I know that the standard practice for Epinephrine administration in the case of anaphylaxis is in the patient’s deltoid. I have heard and read that the time to maximal serum concentration of epinephrine is 7 times faster with IM administration to the anterolateral thigh.

My question therefore is: Would it be acceptable to administer epinephrine in the anterolateral thigh as opposed to the deltoid? Or, is SWORBHPs preferred administration site the deltoid and if so why?

References:
http://emergencymedicinecases.com/anaphylaxis-anaphylactic-shock/

Simmons, F.E., Kelso J.M., Feldweg A.M. (2015). Anaphylaxis: Rapid recognition and treatment. In T. W. Post (Ed.), UpToDate. Retrieved from http://www.uptodate.com/contents/anaphylaxis-rapid-recognition-and-treatment/