If you are in Dallas Fort worth area take her to Parkland hospital.  We treat illegal people and people who do not  have any insurence daily in large number.  If you are in any other place of the US make sure you take her to nearest county hospital in  Emergency room.  She will be treated with no problem.  Everyone has the right to get treatment at the public hospital.  I am not very sure about the private ones though. 

Hope your mom wll feel better soon.