Everything was going fine. I was passing PO's, hanging IVPB's, etc. Around 10am I passed some PO's to a woman. No problems. I then hungg an IVPB with my instructor in a another room. As im documenting for the IVPB I remembered I had to sign for the PO's I had just passed. I was going to finish documenting the IVPB and go document for the PO's. Right then the primary nurse came and asked me if i had passed those 10am meds. I said yes and I was coming over there to document that right now. She knew that I was passing all the meds for that pt and had watched me pass them. As I walk around the corner I see her with the MAR and talking to my instructor. My instructor comes over and said that we needed to talk. She said that she going to fail me for med pass because of unsafe practice. Now I understand the importance of documenting right after you do something. Im not downplaying that I made a mistake. My instructor said what if the primary had passed those meds again(however unlikely because she knew I was doing them and watched me pass them). I guess im not really sure what im trying to say. Just frustrated with the whole situation. Feel free to chime in here.