Can an Emergency Room refuse treatment?

Question Details:

I took my daughter to the ER last night because of her coughing. I made it to Triage and the nurses wanted a temp rectally. I refused to let them do that but told them they could take it under her arm instead. They told me they would not treat her unless they did the rectal temp. I told them to tell the doctor that I would not allow a rectal and she returned with the nurse to tell me the same thing. My 2 year-old daughter was not treated and I had to take her to her pediatrician today. Am I able to file a suit against the hospital for this? Important Notice