30-mins
Transfuse over a 2-4 hours..
When animal cells are in fresh water for a long time cytolosis occurs and red blood cells explode.
Fresh blood typically lasts for about 42 days in the body before it gets replaced with new blood cells. However, if you're asking about how long fresh blood can be stored outside the body, it can be refrigerated for up to 42 days or frozen for up to 10 years. Just don't go trying to stock up on blood like it's a pantry item, okay?
Whole blood needs to be refrigerated and can be stored safely for as long as 35 days, and red blood cells can be refrigerated for as long as 42 days. Plasma has the longest storage time of one year. These products need to be refrigerated to keep them fresh.
20 seconds
a whole summer
By using a centrifuge. I donate platelets, not whole blood and it is done by this method. They spin out what they need. whole blood donations can also be split to help as many as three different patients. You can't derive blood from plasma. You can derive plasma from blood all day long, but you can't derive a whole (blood) from a part (plasma).
Yes, you can. It keeps the flour fresh and free of bugs and weavils.
approximately 7 minutes
It is always fresh
The blood travels from the heart, all through the body and then back to the heart again. This whole process only takes a matter of minutes.
Weed stays fresh for a long time. You can put it in a plastic bag to keep it fresh for a long time or you can also freeze it.