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Bedside diagnostic blood testing. Its accuracy, rapidity, and utility in blood conservation
JAMA
|July 17, 1991
Summary
Bedside microchemistry instruments offer rapid and reliable blood test results using minimal whole blood. This technology significantly reduces turnaround time and iatrogenic blood loss in intensive care units, improving patient care.
Area of Science:
- Clinical Chemistry
- Point-of-Care Testing
- Medical Diagnostics
Background:
- Bedside diagnostic testing with microchemistry instruments enables rapid evaluation of urgent blood tests.
- Microchemistry technology can be crucial for blood conservation in critically ill patients.
Purpose of the Study:
- To test the hypothesis that microchemistry instruments offer advantages in intensive care units (ICUs).
- Key advantages evaluated include rapid turnaround time, reduced iatrogenic blood loss, and accurate analyte results.
Main Methods:
- A one-year prospective, random-sample comparative study.
- Analysis of blood samples from 850 patients across two hospitals (university teaching and community-affiliated).
Main Results:
- Strong correlations were observed between microchemistry instruments and laboratory instruments for various analytes when samples were analyzed simultaneously.
- While correlations remained significant, some variability increased when samples were analyzed at the bedside (ICU) and then transported for routine laboratory testing.
Conclusions:
- Multichannel microchemistry instruments provide accurate analyte determinations comparable to established laboratory methods.
- Significant time and blood savings were achieved using microchemistry instruments in the ICU.
- Bedside microchemistry offers potential clinical advantages across various critical care settings.