For clarification, it's a t-tube for biliary drainage. I asked a couple of other nurses last night, and there was some confusion. The frst nurse said she didn't know, and the second nurse said she flushes toward the patient because that's what she was told to do by yet another nurse. She said she was concerned that she might be flushing unwanted stuff back into the patient, but that's what she was told to do. In my mind, "forward only" means with the flow of drainage, and that would be away from the patient. I'm on my way in now, so, hopefully, I'll find out.