Pseudoparaproteinemia Detected by CE due to Omnipaque™ Infusion : A Case Report

• Serum or plasma protein electrophoresis is often performed in clinical laboratories to detect and monitor M-components. During the last decade, capillary electrophoresis (CE) has emerged as an interesting alternative to traditional analysis of serum, plasma and urine proteins by agarose gel electrophoresis. We here report a case of pseudoparaproteinemia detected by capillary electrophoresis after Omnipaque™ (iohexol) infusion in a patient with normal kidney function. It is important for the laboratories to be aware of this source of erroneous results and not misclassify it as monoclonal gammopathies.

Nyckelord

Capillary electrophoresis

Pseudoparaproteinemia

Nephelometry

M-component

Omnipaque™ in human plasma

MEDICINE

MEDICIN

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