If you are seeing evidence of cuts in the tongue it is likely that she did swallow some glass. The concern is the glass becoming obstructed and perforating the gastrointestinal tract; if this happens the outcome could be fatal, I am sorry. For this reason, I would definitely have her checked by a veterinarian as soon as you can for x-rays. In the meantime this is what you can do:
1- Do not give things like Pepto Bismol.
2- Do not induce vomiting.
3- Change her diet for the next 3-5 days to rice (75%) and boiled boneless chicken or ground beef (25%). The idea is for the rice to bind the glass and help pass it in the feces while protecting the intestinal tract.
4- If at any point she starts to vomit, becomes restless, abdominal pain, pale gums, etc. have her checked by ER veterinarian otherwise follow up with your family veterinarian in the morning.
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