Sign in →

Test Code CU INDEX Chronic Urticaria Index

Additional Codes

If the CU Index PANEL is ordered, order on the CU INDEX along with TPO AB, TSH, and TG AB.

Clinical System Name

Chronic Urticaria Index


CU Index Panel (see above ordering note)
Functional Anti-FceR

Sample Requirements

Specimen: Whole Blood

Container(s): Gold SST

Preferred Vol: 5 mL

Minimum Vol: 3 mL


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

Processing Instructions

Reject due to:

Spin: Y

Aliquot: Y

Temp: -20 C

Storage location: Aliquot serum into plastic tube affixed with large computer label. Deliver specimen to the CPA freezer send-outs rack. Freeze/thaw cycles ok.


Off-site collection: Spin blood. Transfer serum to plastic aliquot container. Refrigerate.


Specimen Type Temperature Time
Serum Room temp 1 w
  Refrigerated 2 w
  Frozen 1 y



STAT Performed TAT
N M, W, F 3 - 7 d


Performing Laboratory

IBT Reference Laboratory


IBT Reference Laboratory

1001 NW Technology Dr
Lee's Summit, MO 64086
(800) 305-5198


Reference Range

< 10.0



Analytical Volume: 1 mL


CPT Codes


Send Out Instructions


Reference Test Name: CU Index®
Reference Test Number: 2103
Instructions: Ship via FedEx M - F.