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Table 2 Pre-warmed gel packs extend the time above 15°C when shipping at cold temperatures

From: Shipping blood to a central laboratory in multicenter clinical trials: effect of ambient temperature on specimen temperature, and effects of temperature on mononuclear cell yield, viability and immunologic function

Outside Temperature

Gel Pack Temperature

Hours

  

Safe-Guard

JVI

4°C

37°C

3.5

4.5

 

RT

1.8

2.0

Ambient

37°C

3.4

5.9

 

RT

2.5

3.2

  1. Gel packs pre-warmed at RT or 37°C were packed inside blood specimen shipping containers along with probes to measure the internal and temperature after sitting overnight in a constant 4°C cold room or outdoors where temperatures fell below freezing. The number of hours the internal temperature remained above 15°C is show.
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Journal of Translational Medicine

ISSN: 1479-5876

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