“All applicants must have successfully completed a bachelor’s degree in a field of the applicant’s choice at an accredited college or university” (Nothwestern)

and

“…degree of emphasis is secondary to academic performance” (Creighton University)

…if you feel that your skills in Spanish would allow you to “get better grades” in the prerequisite courses, then choosing Spanish as a major is plausible. However, remember that the sciences are consistent with the level of academic performance required to make it through the PT program. If, however, you choose Spanish as your major purely because you enjoy it (and yes, it will help your career as a PT) then I say: “do it.”

The APTA has a visionary statement that by 2020 all PT programs will be DPT level programs, and they continue to encourage applicants to obtain the DPT. This, however, is not yet definitive; and yes, all previous graduates will still be allowed to practice whether they have their MS or DPT. This is a similar situation to 2002 when it changed from a BS to an MS….There are still many, many PTs practicing who’ve earned their BS…and even some with a certificate program.