Fig. 2From: Effect of specimen type on free immunoglobulin light chains analysis on the Roche Diagnostics cobas 8000 analyzerComparisons of serum versus EDTA-plasma or lithium heparin-plasma separator tube as specimens for measurement of free light chains (n = 100). The graphs are scatter plots of data for kappa concentration (a, b), lambda concentration (c, d), and kappa/lambda ratio (e, f). The line is the line of identityBack to article page