Why is serum preferred over plasma in serologic determinations?

Answer 1

serum is the preferred specimen for most chemistry, blood bank and serology test because proteins, such as fibrinogen, cause intererferences in the procedure or test. anticoagulant may also cause interferences which is present in blood plasma.

Answer 2

Serum is still the most preferred specimen in Clinical Chemistry as the interferences that maybe caused by a plasma specimen because of the presence of an anticoagulant, is eliminated.

Answer 3

Because of presence of compliment serum prerred rather than plasma