Year: 2026

Cardiac Biomarkers are laboratory tests that measure molecules released into blood when the heart is injured, stressed, or remodeling. They belong to the category of diagnostic tests (blood-based biomarkers). They are commonly encountered in emergency cardiology for chest pain and in inpatient/outpatient care for heart failure evaluation. They help clinicians connect symptoms to underlying cardiac physiology and disease mechanisms.

D Dimer is a blood test marker that reflects breakdown of a blood clot. It is a laboratory test, not a disease or a medication. It is commonly used when clinicians are assessing possible venous thromboembolism, including pulmonary embolism. In cardiology, it often appears in the evaluation of acute chest pain, shortness of breath, syncope, and suspected aortic syndromes.

CRP stands for C-reactive protein. CRP is a blood test marker that reflects inflammation somewhere in the body. CRP is a laboratory test (a biomarker), not a diagnosis by itself. In cardiology, CRP is commonly encountered in risk discussions about atherosclerosis and in inflammatory or infectious heart conditions.

NT proBNP is a blood test marker used in cardiology to assess cardiac stress. It is a laboratory test, not a disease or a symptom. It is commonly encountered when evaluating shortness of breath and suspected heart failure. It is also used for risk assessment and follow-up in several cardiovascular conditions.

BNP stands for B-type natriuretic peptide, a hormone made mainly by the heart. BNP is a laboratory test result and a biomarker used to assess cardiac stress. BNP is commonly encountered when evaluating shortness of breath and suspected heart failure. BNP is also used in cardiology to support risk assessment and follow-up discussions.

CK MB is a blood test marker that reflects injury to muscle cells, including heart muscle cells. CK MB stands for the MB isoenzyme of creatine kinase (CK), an enzyme involved in cellular energy transfer. It is a laboratory test used in the evaluation of suspected myocardial injury, especially in time-sensitive clinical settings. It is commonly discussed in cardiology alongside cardiac troponins and electrocardiography (ECG).

Troponin is a family of proteins involved in muscle contraction. In cardiology, Troponin most often refers to a blood test used to detect heart muscle injury. It is a laboratory biomarker (a test result), not a symptom or a diagnosis by itself. It is commonly encountered in emergency care and inpatient cardiology when chest pain or possible myocardial infarction is being evaluated.

Triglycerides are a type of lipid (fat) made of glycerol plus three fatty acids. They are both a circulating biomarker measured on a lipid panel and a stored energy source in adipose (fat) tissue. In cardiology, Triglycerides are commonly encountered during cardiovascular risk assessment and metabolic evaluation. They are discussed alongside cholesterol fractions (low-density lipoprotein cholesterol and high-density lipoprotein cholesterol) in dyslipidemia.

HDL stands for high-density lipoprotein. It is a blood lipid particle and a laboratory measurement commonly reported on a lipid panel. HDL is often discussed in cardiology as part of cardiovascular risk assessment and prevention. It is sometimes called “HDL cholesterol,” although the cholesterol is carried within HDL particles.

LDL is low-density lipoprotein, a blood particle that carries cholesterol. LDL is a laboratory-related concept commonly discussed in lipid testing and cardiovascular risk assessment. LDL is encountered in cardiology when evaluating atherosclerotic cardiovascular disease risk and prevention strategies. LDL is often discussed alongside lifestyle changes and lipid-lowering medications in outpatient and inpatient care.