These are the most complex examinations and include electrocardiograms (EKGs). The electrocardiograms of 28 patients were reviewed, 14 patients showed "early myocardial infarction-like" pattern. Mefloquine may cause abnormalities with heart rhythms that are visible on electrocardiograms. They include thermometers, brain scans, and electrocardiograms. Their lung, heart and brain activity was constantly monitored by pneumograms, electrocardiograms and encephalograms. Although, multiple electrocardiograms showed no significant findings that would lead to a diagnosis of LQTS. Improved technology meant the addition of electrocardiograms, x-rays and laboratories. In it, Dubin adopts a simplistic fill-in-the-blank style to teach the basics of reading electrocardiograms.