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Mayo Clinic Laboratories

 

sidebar content for test

Mayo Clinic Laboratories

Test ID FCUIP CU Index Panel

Method Name

Ex Vivo Challenge, Cell Culture and Histamine Analysis

Reporting Name

CU (Chronic Urticaria) Index Panel

Specimen Type

Serum Red

Draw blood in a plain, red-top tube(s). Allow to clot; then spin down and separate. Submit 3 mL serum refrigerated in a plastic vial.

 

Note:    1) Patients taking calcineurin inhibitors should stop medication 72 hours prior to draw.

            2) Patients taking prednisone should be off their medication 2 weeks prior to draw.

Specimen Minimum Volume

1.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Red Refrigerated (preferred) 7 days
  Ambient  7 days
  Frozen 

Reference Values

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.

 

Day(s) Performed

Monday, Wednesday, Friday

Report Available

2 - 5 days

Performing Laboratory

Viracor-IBT Laboratories

Test Classification

This test was developed and its performance characteristics determined by Viracor-IBT Laboratories. It has not been cleared or approved by the FDA.

CPT Code Information

84443 – Thyroid Stimulating Hormone

86352 – Assay cellular function

86376 – Microsomal antibodies

86800 – Thyroglobulin antibody

NY State Approved

Yes