How long does it take for blood to expire?
Blood does not technically "expire" in the same way that food does. However, donated blood is regularly tested and stored based on specific guidelines to ensure its safety and effectiveness for transfusion. The shelf life of donated blood varies depending on the component of blood being stored:
1. Packed Red Blood Cells (PRBCs): PRBCs are typically stored for up to 42 days at refrigerated temperatures (between 1 to 6 degrees Celsius or 33.8 to 42.8 degrees Fahrenheit).
2. Platelets: Platelets have a shorter shelf life and are stored at room temperature (20 to 24 degrees Celsius or 68 to 75.2 degrees Fahrenheit). They are typically stored for up to 5 to 7 days.
3. Fresh Frozen Plasma (FFP): FFP is frozen and stored at temperatures below -18 degrees Celsius (or 0 degrees Fahrenheit). It can be stored for up to one year.
4. Cryoprecipitate: Cryoprecipitate is also frozen and stored below -18 degrees Celsius (or 0 degrees Fahrenheit). It can also be stored for up to one year.
It is important to note that these are general guidelines, and specific blood banks may have slightly different protocols and expiration times. The goal is to use the blood components before they become less effective for transfusion.