Liza is admitted and given a private room before she has even had her x-rays. This would be handled in the ER. She is also served a full meal before the doctor has determined whether she needs surgery.
In S02E02, Liza insists that she was born in 1974 but in this episode after she has the bicycle accident and ends up in the hospital, on her hospital bracelet you can see her birthyear showing as 1976.