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Related Experiment Videos

Temperature-sensitive labels for containers of RBCs.

Viviana Johnson1, Albert Langeberg, Addisalem Taye-Makuria

  • 1Laboratory Department, Georgetown University, Hospital, Washington, DC 20007, USA.

American Journal of Clinical Pathology
|August 2, 2006
PubMed
Summary

Temperature-sensitive labels accurately reflect core temperatures in red blood cell (RBC) units, enhancing blood product safety during transport and storage beyond current guidelines.

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Area of Science:

  • Transfusion Medicine
  • Biomedical Engineering
  • Logistics and Supply Chain Management

Background:

  • Temperature-sensitive labels are emerging technologies for monitoring temperature excursions.
  • No prior studies have evaluated their efficacy for blood components.
  • Current guidelines, like the 30-minute rule, aim to maintain blood product integrity.

Purpose of the Study:

  • To assess the suitability of temperature-sensitive labels for monitoring red blood cell (RBC) temperatures.
  • To compare label performance against digital thermometer readings during warming.
  • To evaluate the labels' correlation with core versus surface temperatures of RBC units.

Main Methods:

  • Digital thermometers measured temperatures at various locations within RBC containers.

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  • Three types of temperature-sensitive labels were applied to the RBC units.
  • Temperature data were collected as units warmed to ambient conditions post-refrigeration.

    • Main Results:

    • Refrigerated RBC units exhibited a temperature gradient upon warming.
    • All tested temperature-sensitive labels showed better correlation with core RBC temperatures.
    • Label color changes indicated temperature excursions relative to core temperatures.

    Conclusions:

    • Temperature-sensitive labels offer a reliable method for monitoring the core temperature of RBCs.
    • These labels provide an enhanced safety measure, complementing existing blood transport regulations.
    • The technology can improve transfusion service safety protocols for blood component management.