ARTICLE 4 - (1) The following terms used in this Regulation refer to:
a) Sudden cardiac arrest: The sudden cessation of cardiac activity along with the sudden collapse of circulation due to disruption in the heart's electrical conduction system,
b) Ministry: The Ministry of Health,
c) Electrocardiography (ECG): The process of recording and analyzing the electrical activity produced by heart cells that enables the heart to function,
d) Lay rescuer: A person who is not a healthcare professional but is present at the scene during an emergency and provides first aid with the support of the Health Command and Control Center (HCCC) until medical assistance arrives,
e) First aid: Rapid and effective interventions performed at the scene with available resources in cases of sudden illness or injury, aimed at preserving the person's life, preventing deterioration of their health condition, and supporting their recovery,
f) First aider: A person who has received training in accordance with the standards set by the Ministry and holds a first aider certificate authorizing them to perform applications within the scope of the training provided,
g) AED acquirer: The person or institution that purchases the AED device,
h) AED user: Healthcare professionals, first aiders, and lay rescuers,
i) AED-Net: The software system where AED data is recorded and monitored by the Ministry,
j) Health Command and Control Center (HCCC): The unit within the 112 emergency call center in provinces where emergency health calls are received and ambulances are dispatched and managed,
k) Healthcare professional: Healthcare professionals as defined by Law No. 1219 dated April 11, 1928 on the Practice of Medicine and Its Branches, and the Regulation on Job and Task Descriptions of Healthcare Professionals published in the Official Gazette No. 29007 dated May 22, 2014,
l) Portable Automated External Defibrillator (AED): A portable device that analyzes heart rhythm and, when necessary, automatically delivers an electric current to the heart.