I understand that hospitals can be very busy and ...

I understand that hospitals can be very busy and I'm very thankful for nurses and doctors. However, I've had two experiences at the ER room as a companion of a loved one, and sadly I have to say that I did not feel comfortable or secure leaving my loved one by themselves at the ER. I don't know if the problem is lack of staff, or is normal procedure that the patient stays for a long period of time waiting for a simple request, such as pain medication. I have read some of the negative reviews, and many refer to the ER.