How long does a blood sample last?

The shelf life of a blood sample depends on several factors, including the type of sample, the anticoagulant used, and the storage conditions. Here are some guidelines for how long different types of blood samples can be stored:

Whole blood: Whole blood can be stored at room temperature for up to 2 hours or at 4°C (39°F) for up to 6 hours.

Serum: Serum can be stored at room temperature for up to 24 hours or at 4°C for up to 7 days.

Plasma: Plasma can be stored at room temperature for up to 4 hours or at 4°C for up to 14 days.

Buffy coat: Buffy coat can be stored at room temperature for up to 2 hours or at 4°C for up to 24 hours.

Platelet-rich plasma (PRP): PRP can be stored at room temperature for up to 4 hours or at 4°C for up to 24 hours.

Please note that these are general guidelines, and the shelf life of a blood sample may vary depending on specific factors such as the individual's health, the collection technique, and the handling of the sample. It is always best to follow the specific storage instructions provided by the laboratory or healthcare provider who collected the sample.