What is the optimum storage temperature for platelets?

Platelets are best stored at a temperature of approximately 22 ˚C. This storage condition is significant because it helps to maintain platelet viability and functionality for transfusion purposes. When platelets are maintained at room temperature (often referred to as "ambient temperature"), they are kept in constant agitation to prevent them from clumping together and to ensure that they remain functional.

Storing platelets at cooler temperatures such as 4 ˚C can lead to decreased platelet survival and impaired function. Cold storage can have detrimental effects on platelet metabolism, potentially leading to activation or apoptosis of the platelets. Therefore, the specified storage temperature of 22 ˚C, combined with agitation, is critical for preserving the quality of platelets until they are needed for transfusion in patients.