Serum and plasma-difference and how are they obtained?

Question

Serum and plasma-difference and how are they obtained?

Answer 1

This question has been asked many times before.  So instead of typing it all out again, please see my previous Best Answer:

http://answers.yahoo.com/question/index;...

Here's another person's answer that addresses the 2nd part of your question better than my answer:

http://www.madsci.org/posts/archives/199...

In short: serum = plasma - clotting factors

Hope this helps.