A study was completed that examined the characteristics of micro fluctuation state of ECG signal during the screening process in Sudan. On a representative sample of 362 individuals surveyed by dispersion mapping (DM), a boundary separating the “norm” and ”pathology” was defined as “Myocardium” 17%. A borderline zone with “possible pathology” was established as “Myocardium” from 18% to 21%, which indicates the need for special clinical and instrumental examinations and further follow-ups. To increase the sensitivity of the method in detecting any existing pathology, simple stress tests were performed to determine the electrophysiological changes of the myocardium in patients with normal or borderline changes in “Myocardium”. The study was also able to show the differences of DM-ECG individual indicators among Sudanese in comparison with Russians in similar age groups, which should be strongly considered when using this technology. Thus, the use of portable and easy-to-use Russian technology, allows more efficient screening implementation in primary health care, and help expand diagnostic capabilities outside the medical and health facilities.