Author: Leanne Ward, MED, BB, (ASCP) Manager,Human Cells and Tissue Banking Program DeKalb Medical, Decatur, GA
To determine whether x-ray irradiation of blood products with an attached Safe-T-Vue 10 Nonreversible Temperature Indicator has an impact on the functionality of the indicator.
- The center of the Safe-T-Vue indicator is white immediately after irradiation.
- The center of the Safe-T-Vue indicator turns red when the unit reaches 10°C on the countertop at room temperature.
- There is no visible damage to the components of the Safe-T-Vue indicator (i.e., the plastic making up the indicator).
- There is no visible damage to the unit where the indicator was placed (i.e., no damage to the blood bag by the adhesive).
- The center of all Safe-T-Vue indicators was white immediately before and after irradiation in the Raycell 3000 Blood X-ray Irradiator.
- The center of the Safe-T-Vue indicator turned red when the temperature of the unit exceeded 10°C. There were four instances in which the temperature recorded by the probe inserted into the top of the blood bag exceeded 10°C, but the Safe-T-Vue indicator located on the bottom of the bag was still white or pink. These instances reflect the fact that the probe was measuring the temperature of the bag in a different location than the indicator. The volume of red blood cells in each location was probably not exactly equal, resulting in silghtly different temperatures.
- There was no visible damage to the components of any of the Safe-T-Vue indicators used in this study.
- There was no visible damage to the units where the indicators were placed during this study.
- Based on the results of this study, it appears that Safe-T-Vue 10 Nonreversible Temperature Indicators may be safely irradiated in a blood x-ray irradiator.