I had an ekg two years ago that revealed prolonged QT intreval...then I went to the ER one year later for chest pain and the ekg stated and infarct but cardiac enzymes low so later had testing and was told it was esophageal spasms....now I had an ekg for a preop clearance and it came out borderline t wave abnormality...I did have a treadmill stress echo in 2011 that was supposedly normal........
Cardiac enzymes raises in case of myocardial injury. If your cardiac enzymes are low or in normal limit then it means your myocardium isn't injured or ischemic. These enzymes do raise in renal impairment. If u don't have CKD then this low level is quite good diagnostic for your current health condition.