Hi, my father was taken to the hospital earlier after feeling sick suddenly and almost passing out. He's been in the ER for a long time, and the doctors haven't told my mom much. The EMTs said that it's possible that he could have a blood clot in his leg, but he might have also just gotten dehydrated.

I'm worried that it was a heart attack. The doctors have only told my mom that my father's white blood cells and a cardiac enzyme are both a little high, but they didn't say anything else.

Do you have some idea what might be going on?