My 3 year old just got the g-j tube put in on Monday.  He only takes 1 medicine through the g-tube and everything else is through the j tube.  He has been feverish and last night he was up and down all night.  He eventually threw up dark brown liquid.  Can you please tell me what to do?
As such dark brown vomits could indicate presence of altered blood which could be a cause of concern. It could mean bleeding somewhere in the gastrointestinal tract. It is hard to comment on the treatment without knowing the specific reasons for the gastro-jejunostomy tube to be put. I would need to know the length of the segments and whether a segment has been excised before commenting. I suggest that you take the child to his treating physician and get him evaluated.