Diagnostic implications of enumerating and reporting beta fraction(s) for the detection of beta-migrating monoclonal immunoglobulins in serum protein electrophoresis

Beta increases were associated with increased odds for B-MC, hence providing value and justification for their reporting and reflex testing. ↑B1 and/or ↑B2 detected more B-MC than ↑B, supporting separate reporting of B1 and B2.