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Blood Studies for Cardiovascular System I: Cardiac Biomarkers

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...

Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers

Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers

Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...

Acute Coronary Syndrome III: Diagnostic Studies

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Dysrhythmias V: Evaluating Dysrhythmias

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Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...

Imaging Studies for Cardiovascular System V: CT

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Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...

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Related Experiment Video

Updated: Jun 22, 2026

A Sensitive and Specific Quantitation Method for Determination of Serum Cardiac Myosin Binding Protein-C by Electrochemiluminescence Immunoassay

A Sensitive and Specific Quantitation Method for Determination of Serum Cardiac Myosin Binding Protein-C by Electrochemiluminescence Immunoassay

Published on: August 8, 2013

Cardiac markers.

Paul O Collinson¹

¹Clinical Blood Sciences Laboratory, St. George's Hospital, London SW17 ORE.

British Journal of Hospital Medicine (London, England : 2005)

|June 12, 2009

Summary

Cardiac biomarkers are crucial for diagnosing cardiovascular diseases. Currently, only cardiac troponins and B-type natriuretic peptide (BNP) are routinely used for acute coronary syndromes and heart failure, respectively.

Area of Science:

Cardiology
Biomarker Discovery

Background:

Cardiac biomarkers are essential in cardiovascular disease diagnosis and management.
Numerous new biomarkers are frequently reported, but few achieve routine clinical use.

Purpose of the Study:

To highlight the current clinical utility of cardiac biomarkers.
To differentiate between established and emerging cardiac biomarkers.

Main Methods:

Review of current clinical practices in cardiovascular diagnostics.
Analysis of the established roles of key cardiac biomarkers.

Main Results:

Only two cardiac biomarkers, cardiac troponins and B-type natriuretic peptide (BNP), are in routine clinical use.
Cardiac troponins are used for diagnosing acute coronary syndromes.

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Digital PCR for Quantifying Circulating MicroRNAs in Acute Myocardial Infarction and Cardiovascular Disease

Digital PCR for Quantifying Circulating MicroRNAs in Acute Myocardial Infarction and Cardiovascular Disease

Published on: July 3, 2018

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Last Updated: Jun 22, 2026

A Sensitive and Specific Quantitation Method for Determination of Serum Cardiac Myosin Binding Protein-C by Electrochemiluminescence Immunoassay

A Sensitive and Specific Quantitation Method for Determination of Serum Cardiac Myosin Binding Protein-C by Electrochemiluminescence Immunoassay

Published on: August 8, 2013

Digital PCR for Quantifying Circulating MicroRNAs in Acute Myocardial Infarction and Cardiovascular Disease

Digital PCR for Quantifying Circulating MicroRNAs in Acute Myocardial Infarction and Cardiovascular Disease

Published on: July 3, 2018

BNP is used for diagnosing heart failure.

Conclusions:

Despite ongoing research, cardiac troponins and BNP remain the primary validated biomarkers for routine cardiovascular diagnosis.
The clinical application of novel cardiac biomarkers requires further validation.