The gel in my blood tube is hard, is that normal?

  • Created

Yes, the gel at the bottom of the blood tube should be hard and is therefore intact.

This is a barrier gel for centrifugation.
The gel is solid because it should stay on the bottom of the tube and not mix with the blood, but only come into contact with it.
During centrifugation, it moves upwards to the serum-clot interface to form a stable barrier and separate the serum from cells.