Immunological Testing lab tests in LabsMD Lab Test Test Cost Complement Component C3c - C3 complement test $62.86 C-Reactive Protein (CRP) - CRP Test $36.57 Adrenal Antibody Screen with Reflex to Titer $174.29 C-Reactive Protein (CRP), High Sensitivity (Cardiac Risk Assessment) $40.86 Gliadin (Deamidated Peptide) Antibody (IgG, IgA) - Gliadin Antibody Test $71.14