Figure 2.

Typical aggregation curves obtained by the rapid screening test performed on type II (•) and type I (□) cryoglobulinemic sera and on a sample of a control subject (∆). Curves are normalized to the type II profiles; original A _max⁡ values were 1.32, 1.40, and 0.08, respectively. When tested using the traditional method, the cryoglobulinemic sample showed a cryocrit value of about 5%. Continuous and dotted lines refer to samples of type II and I cryoglobulinemic sera displaying the lowest and highest recorded lag time (t ₀) values (t _0(min⁡⁡) = 0.2 and 2.9 and t ₀ = 15.4 and 24.1, resp.).