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Updated: Aug 9, 2025

Preparation of a Blood Culture Pellet for Rapid Bacterial Identification and Antibiotic Susceptibility Testing
Published on: October 15, 2014
Blood Culture and Troponin Testing in Suspected Bacteraemic Admissions - Example of Risk Stratification Based on
R Conway1, D Byrne2, D O'Riordan1
1MD, Department of Internal Medicine, St James's Hospital, Dublin 8, Ireland.
Aim:
To investigate the clinical predictive value of troponin (hscTnT) and blood culture testing.
Methods:
We examined all medical admissions from 2011-2020. Prediction of 30-day in-hospital mortality, dependent on blood culture and hscTnT requests/results, was evaluated using multiple variable logistic regression. Length of stay was related to utilization of procedures/services with truncated Poisson regression.
Results:
There were 77,566 admissions in 42,325 patients. With both blood cultures and hscTnT requested, 30-day in-hospital mortality increased to 20.9% (95%CI: 19.7, 22.1) vs 8.9% (95%CI: 8.5, 9.4) for blood cultures alone and 2.3% (95%CI: 2.2, 2.4) with neither. Blood culture 3.93 (95%CI: 3.50, 4.42) or hsTnT requests 4.58 (95%CI: 4.10, 5.14) were prognostic.
Conclusion:
Blood culture and hscTnT requests and results predict worse outcomes.
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