They act as if they want to scare her on purpose. They send 3 "maids". My guess is they are told to act like nurses, but are trained soldiers. Couldn't they fit in at least one psychologist or trained diplomat? The military have those, too. Also their approach to tell her shit is quite depressingly stupid, except they really want to know, how much it takes to make her flip.
Normal procedures or not, she is practically a humanoid alien. Even I would act suspicious, in such an environment, if the tell me next to nothing, even if I understand what they need those samples for. But that's me, grown up in an industrialized country, knowing all my rights. She is a medial soldier princess and therefore she already surrendered to the situation, that she is expected to listen to commands. In that hindsight, that actually might help.....until even she judges, that things go too far. And without trained or gifted empathetic people, you don't see that point coming...stupid.