How is a serum sample collected for an immunofixation test?

Updated: Jul 29, 2019
  • Author: Anastasios Dimou, MD; Chief Editor: Eric B Staros, MD  more...
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Answer

Answer

Sample: Serum (whole blood or plasma is inappropriate, as fibrinogen may alter the results)

Tube: Red top (see image below)

Red top tube for the collection of serum used. Ima Red top tube for the collection of serum used. Image courtesy of Rush University.

Technique: Venipuncture

Sample size: 4 mL


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