QRS Q waves Physiologic Q waves <.04 sec (40ms) Pathologic Q >.04 sec (40 ms)
{"Image DocumentName": "QRS Q waves Physiologic Q waves Pathologic Q < .04 sec (40ms)", "Image ImageDescription": "Q waves can occur normally in several leads (I, III, aVL, aVF, V5, V6). These Q waves are called physiologic Q waves. Physiologic Q waves normally do not exceed 30ms. Pathology (including myocardial infarction) can place a Q wave in any lead. It is possible to examine the Q wave and, based upon its width, speculate whether it is pathologic or physiologic.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}