Bottom of the Food Chain

During the third week of my clinic something came up with my Curtin tutor that I thought I'd share. We were seeing a patient that we had seen the previous week. This patient had been in for three weeks, with infective exacerbation COPD, and was coughing up copious amounts of stuff ranging from pink to dark green, and always very runny and always lots of it with little trying to get it up. I had developed a bit of a rapport with her doctors as I was concerned with how much she was always producing. Anywho the week before when the Curtin tutor came in we got sample, cause that was the pink day, and we got in touch with te doctor and he said do a sample. Later that week (second week) when I was by myself, the sputum changed and I saw the doctor in the hall so I told him what we found and asked if they wanted a sample. He said "No that's ok, we have enough samples. Thanks". (very polite doctor)
So fast forward to third week when the Curtin tutor comes in. After we see the lady she says for me to get a sample. So I went to look up the doctors pager number to ask him if he wanted it, because in the hospital you have to get a doctor to fill out the sample request form. As I'm looking for it she says to just the sample then we'll get the form filled. So got the sample, and then she's says "Is the doctor here?" He wasn't so she says for me to just get another doctor to fill out the request form. (this is somewhat common, but still within being legal) Now at this point I felt uncomfortable getting this sample kinda behind the doctors back when I knew he wouldn't want it done. And the doctor I asked to fill out the form did so very unwillingly, and asked a million questions. Anywho after she left I was worried that when the results came back and the doctor found out that I had gone ahead and sent the sample off kinda behind his back that he may take offense. Because in all honesty it isn't my decision to send off samples and its kinda like second guessing what he's doing.
I guess by saying all that I was just wondering what do you do when the tutor who is there only a fraction of the time pushes for something you dont think should be done. Like this other time that she had me page two interns about 5 times each in a space of 10 mins, to find out if we could get a patient up. I knew that calling them was important but if they could they would have returned the call. Come to find out the phone I was paging from didnt really work so I couldnt receive the returned calls on it. I just felt like the annoying student physio. Anywho later my fellow physios. Sorry this one is a bit all over the place.