Sign in →

Browse by Name

  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  27. #
 

Sidebar Content

Mayo Clinic Laboratories

 

sidebar content for test

Mayo Clinic Laboratories

Test ID FCUIX CU Index

Method Name

Ex Vivo Challenge, Cell Culture and Histamine Analysis

Reporting Name

CU Index

Specimen Type

Serum

Draw 3 - 5 mL blood in a serum separator tube (SST) (plain, red-top tube is acceptable). Separate from cells within 2 hours of draw. Send 2 mL of 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 for 2 weeks prior to draw.

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

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

Reference Values

< 10.0

 

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

 

Day(s) Performed

Monday, Wednesday, Friday

Report Available

2 - 3 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

86352

NY State Approved

Yes