i thought the interview was for a band 3 post.i dont think that you would be expected to carry out such a detailed examination of a patient as an assistant prior to mobilising someone.
they may ask about AFC, CPD ,KSF etc. occasionally health and safety,risk assessments and incident reporting crops up.
its such a shame that the new graduates have to apply for band3 posts.good luck and hope its not too long before a good band 5 post comes up.