Related Experiment Video
Updated: Mar 20, 2026

Using Extraordinary Optical Transmission to Quantify Cardiac Biomarkers in Human Serum
Published on: December 13, 2017
High-Sensitivity Cardiac Troponin T: a Preanalytical Evaluation
Preanalytical conditions generally do not affect high-sensitivity cardiac troponin T (hs-cTnT) levels. This finding supports the reliability of hs-cTnT testing in clinical practice and research.
Area of Science:
- Clinical Chemistry
- Biomarker Analysis
- Laboratory Medicine
Background:
- Preanalytical factors significantly influence many laboratory test results.
- Limited data exists on the impact of preanalytical conditions on high-sensitivity cardiac troponin T (hs-cTnT).
Purpose of the Study:
- To investigate the effect of various preanalytical conditions on hs-cTnT concentrations.
- To determine the stability and reliability of hs-cTnT under different laboratory handling scenarios.
Main Methods:
- Evaluated hs-cTnT in serum vs. lithium-heparin plasma, with/without separator gel.
- Assessed impact of centrifugation time and speed.
- Determined stability in plasma at room temperature, +4°C, and -80°C.
- Analyzed effects of freeze-thaw cycles at -20°C and -80°C.
Main Results:
- No significant changes in hs-cTnT were observed based on blood collection tube type, centrifugation, or standard storage.
- Minor decreases (<6.5% at -20°C, <3.4% at -80°C) occurred after four freeze-thaw cycles.
Conclusions:
- hs-cTnT concentrations are robust against common preanalytical variations.
- The reliability of hs-cTnT in laboratory practice and clinical research is confirmed.
More Related Videos
07:40Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
Published on: October 10, 2019
10:12A Sensitive and Specific Quantitation Method for Determination of Serum Cardiac Myosin Binding Protein-C by Electrochemiluminescence Immunoassay
Published on: August 8, 2013
Related Concept Videos
Blood Studies for Cardiovascular System I: Cardiac Biomarkers
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...
Acute Coronary Syndrome III: Diagnostic Studies
Cardiac Catheterization I: Pre-Procedure Overview
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
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 I: Introduction