thanks for the info. I'm going to share this on my blog. Very informative. My son was admitted a few months ago from a stomach virus that caused him to be severely dehydrated. His heart rate went up and his blood levels went crazy. In 2 days, I took him to the ER 3 times and took him to see his primary care physician who all told me not to worry. Finally I took him one more time and he was so dehydrated the nurses said if I had waited any longer to bring him in I could have lost him. He was in the hospital for 4 days. It was a nightmare.