Consider the following premises. For all z_1, if z_1 were excited, then z_1 is a nurse. For all z_1, if z_1 were a nurse, then z_1 is excited. There is at least one z_1 for which if z_1 were a nurse, then z_1 is excited. Can we infer the following from them? For all z_1, the fact that z_1 were excited does not imply that z_1 is a nurse.
That contradicts the premises. Therefore the answer is no.