回複：母親來美探親，生病，進了急診， 拿到33000的賬單。對我來說是個巨大的數字。醫院有免費的醫療，

I do not think you have the responsibility to pay the fee for your mother. So, you do not need to worry too much.

You may post this question to "法律谘詢" in wenxuecity and I am sure some people there can help you.