At 6 a.m. on a Friday morning in late May 2015, Merle Bedient reported to work in the housekeeping department at Schuyler Hospital. Two hours into his shift, as he was sweeping and wiping down the emergency room, sharp pains started darting across his upper chest. He waited, thinking it was heartburn. But the symptoms intensified, and an hour later, Bedient, 48, asked a nurse to check his vital signs. Although they were normal, the nurse warned him that he should have a more thorough examination.