Immunoglobulin Subclass Levels Testing for Diagnosis

The lab analyst measures the level of each immunoglobulin subclass ordered on a serum or spinal fluid specimen. The testing is primarily for the immunoglobulin fraction IgG, which can have four subclasses, listed as IgG1, IgG2, IgG3, and IgG4, each of which has diagnostic significance. Choose a location to see hospital-reported price summaries. This page does not show national, sample, or aggregate pricing.