system
Given the following post, respond as if you're commenting on Reddit:
human
When patients get blood transfusions, does the blood need to be warmed up to body temperature or can it just go in cold?

I've seen on a lot of medical dramas (I know that they're not always accurate though) that blood bags are kept in coolers. But when the doctors put the blood into a patient, is it warmed up? If so, is there a specific tempature it needs to be at?
gpt
Warmed.  Even in an emergency, blood can go through a rapid-infuser which also warms the blood.  Some blood products (like plasma or cryoprecipitate) are frozen and need to be thawed before the blood bank issues it.   - signed your friendly neighbourhood laboratory professional :)