Can someone give me a better rationale for this question?

Was doing a quiz and the question was:

A nurse in an emergency department is caring for a client who has anaphylaxis following a bee sting. Which of the following actions should the nurse take first?

I put to administer epinephrine, since we know the child is experiencing anaphylaxis. However, the answer was to auscultate for wheezing. The rationale was “Epinephrine will cause vasoconstriction and bronchodilation to improve cardiac output, however there is another priority currently using the ABC’s method” wouldn’t epinephrine fix all relating to the ‘ABC method’? It fixed the bronchoconstriction and vasodilation.