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HelpTest ID BLOD1770 CU (Chronic Urticaria) Index Panel
Specimen Type
SerumSpecimen Required
Patient preparation: Patients taking calcineurin inhibitors should stop medication 72 hours prior to draw. Patients taking prednisone should be off their medication for 2 weeks prior to draw.
Specimen Type: Serum
Container/Tube: Red or SST
Specimen Volume: 3 mL
Collection Instructions: Draw blood in Red-top tube (SST is acceptable). Separate from cells within 2 hours of draw. Send 3 mL of serum refrigerate in a plastic vial.
Specimen Minimum Volume
1 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 7 days |
| Frozen | 7 days | |
| Ambient | 5 days |
Reject Due To
| Hemolysis: | NA |
| Thawing: | Warm OK; Cold OK |
| Lipemia: | NA |
| Icterus: | NA |
| Other: | NA |
Day(s) Performed
Monday, Wednesday, Friday
Report Available
2 to 9 daysMethod Name
Immunoassay; Ex Vivo Challenge; Cell Culture and Histamine Analysis
Reporting Name
CU (Chronic Urticaria) Index PanelPerforming Laboratory
Eurofins ViracorSecondary ID
57590CPT Code Information
84443
86343
86376
86800
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.
Test Classification
This test was developed and its performance characteristics determined by Viracor Eurofins. It has not been cleared or approved by the U.S. Food and Drug Administration.SANFORD LABORATORY INTERFACE BUILD INFORMATION
| Result Code | Result Code Description |
|---|---|
| 28725 | Anti-Thyroid Peroxidase IgG |
| 28726 | Anti-Thyroglobulin IgG |
| 28730 | TSH (Thyrotropin) |
| 28731 | CU Index |