Market Size, Share, Growth Drivers, and Obstacles for Cardiac Marker Testing, 2024–2030 Request for sample: https://www.stellarmr.com/report/req_sample/Cardiac-Marker-Testing-Market/1104 Patients with chest pain can be diagnosed and their risk categorized using cardiac markers. Patients with acute heart failure and probable acute coronary syndrome can also be managed and their prognosis evaluated. When a patient's history and electrocardiogram (ECG) are non-diagnostic, up to 40% of patients with acute myocardial infractions (AMI) fail to show symptoms.