In the liquid state, plasma must be stored at?

Plasma must be stored at 1-6 °C to maintain its stability and prevent the degradation of its components, particularly clotting factors, which are sensitive to temperature changes. Storing plasma at this temperature range helps to preserve its functionality, ensuring that it remains effective for transfusion purposes.

Higher temperatures, such as 22 °C and 37 °C, can lead to the deterioration of plasma proteins and introduce risks of bacterial growth, making it unsuitable for safe storage. Similarly, a storage temperature of 56 °C would denature many proteins in the plasma, rendering it ineffective for therapeutic use. Therefore, the 1-6 °C range is the optimal condition for ensuring the quality and safety of stored plasma.