FCUIP - Clinical: CU Index Panel

Test Catalog

Test Name

Test ID: FCUIP    
CU Index Panel

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

Anti-Thyroid Peroxidase IgG:     <35 IU/mL

Anti-Thyroglobulin IgG:              <40 IU/mL

TSH (Thyrotropin):                     0.4 – 4.0 uIU/mL

CU Index:                                  <10.0


The CU Index test is the second generation Functional Anti-FceR test. Patients with a CU Index greater than or equal to 10 have basophil reactive factors in their serum which supports and autoimmune basis for disease.