Before doing a pathology rotation, get as much non-pathology clinical experience in the US as possible. Ideally, several months even if it's not full time (e.g. every Saturday ER volunteer). At minimum, a month of full-time experience (any experience) in a clinical medicine setting. A pathology residency still has elements of clinical medicine, and pathologists still interact with clinicians and should not be perceived as (and should not actually be) clueless about how clinical medicine generally works in the US.