I'd say that the Charge Nurse needs to accept the situation, and adjust her staffing, even if that means calling in another nurse. If the woman wants to stay, and her insurance will cover an extra day, and the hospital is not crunched for beds, then she's entitled to stay. One huge problem with acute care is that patients often feel they are being pushed out the door before they are ready to go home. So the Doctor was right to stand his/her ground.

But I'm also going to guess that, if this woman did not require that much care, then someone could have taken an extra patient without calling in another nurse. Sometimes, nurses create drama when none is required.