New Journal Article Documents the Performance of Two Blood Temperature Indicators in Real Hospital Setting

Many blood banks trust and use temperature indicators that are manufactured to monitor the true core temperature of your blood products while they are outside of the blood bank’s control. 

What if you learned that the indicator does not perform in accordance with the guidelines for which it was intended to be used?

Would you have doubts that you may be inappropriately discarding valuable blood product due to this performance discrepancy?

A new article entitled “Utility of temperature-sensitive indicators for temperature monitoring of red blood cell units,” just published in Vox Sanguinis, the International Journal of Transfusion Medicine, could clear some of your doubts while answering important questions about blood temperature indicator performance. We are delighted to share this article with you.

The study documents the performance testing of two temperature indicators, Safe-T-Vue 10 (STV10) and Blood Temp 10 (BT10).  The testing, which was performed with RBC units in an actual hospital setting, demonstrated how these two indicators react when compared to the true core temperature.  Blood temperature indicators are designed and manufactured to help blood banks comply with AABB storage and transport guidelines, which require that true core temperature should not exceed 6°C and 10°C respectively, depending on the application.   


Below are three important points extracted from this study that should be of significance to blood banks in compliance to AABB guidelines:

  1. “The time for color change indicating 10°C was 24.4 min in STV10, 14.6 min in BT10 and 24.2 min in CT.” (CT = Core Temperature)
  2. “Our data imply that STV10 may reflect CT better than BT10 and the performance of STV10 seems to be superior to that of BT10.”
  3. “From a practical point of view, STV10 seems to be more reliable and user-friendly with less interobserver heterogeneity or variation.”

Handy Tip

Correction: STV and other blood bag temperature indicators are “cleared” by FDA through the 510(k) process, rather than “approved.” This is stated twice in the journal article, and is not accurate.

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