+ Infarction: ECG Changes Q waves Indicate a loss of viable myocardium May develop 1 to 2 hours after the onset of symptoms but can take anywhere from
{"Image DocumentName": "Infarction: ECG Changes", "Image ImageDescription": "Q waves. Indicate a loss of viable myocardium. May develop 1 to 2 hours after the onset of symptoms but can take anywhere from 12 to 24 hours to develop.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}