My daughter (the nurse practitioner) is in the hospital. She was having breathing problems and her self given EKG was suspect. She has had a ct scan to rule out a blood clot in the lungs (didn't find one), failed a stress test even before she took it (when she stands up her rate goes to 185), laying down - fine. No ezymes found in the blood work (ruled out heart attack), but her potassium was very low. Waiting for the nuclear medicine stress test results and see what the Drs. agree on. This is day #2, have two of the grandchildren with me. Hopefully we'll know more later today.