What is the shelf life of cryoprecipitated antihemophilic factor when stored at -18C or lower?

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Multiple Choice

What is the shelf life of cryoprecipitated antihemophilic factor when stored at -18C or lower?

Explanation:
Freezing cryoprecipitate preserves the activity of the clotting factors it contains, especially factor VIII and fibrinogen. When stored at -18°C or colder, its potency is maintained for about one year. That’s why the typical shelf life used in practice is twelve months. Shorter periods like six months would unnecessarily limit usable time, while longer periods such as two or three years risk significant loss of factor activity and quality. After thawing, it must be used within a short window, but the question focuses on storage at -18°C or lower, which corresponds to roughly one year.

Freezing cryoprecipitate preserves the activity of the clotting factors it contains, especially factor VIII and fibrinogen. When stored at -18°C or colder, its potency is maintained for about one year. That’s why the typical shelf life used in practice is twelve months. Shorter periods like six months would unnecessarily limit usable time, while longer periods such as two or three years risk significant loss of factor activity and quality. After thawing, it must be used within a short window, but the question focuses on storage at -18°C or lower, which corresponds to roughly one year.

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