Print View Attached Docs:
Methodology: ExVivo Challenge / Cell Culture and Histamine Analysis
Edit Date: 7/15/2010
Performed: Monday-Friday
Released: 48-72 hours after setup at PeaceHealth Laboratories’ reference lab.
CPT Code: 86352-90
Specimen Collection Details
Collection: NOTE: Patients taking clacineurin inhibitors should stop their medication 72 hours prior to draw.
One 7.5 mL serum separator tube (SST).
Handling: Allow to clot, centrifuge and separate serum from cells and pour into a plastic vial. Refrigerate.
Stability: 7 days ambient, 14 days refrigerated, or 1 year frozen.
Standard Volume: 2 mL serum.
Minimum Volume: 1 mL serum.
Transport: Refrigerated, or frozen on dry ice.
Rejection Criteria: Specimen other than serum.
This test may require insurance company prior authorization before ordering.
Please check the prior authorization list
Failure to gain preauthorization may result in denial of coverage.

Reference Range:
Patients with a CU Index ≥ 10 have basophil reactive factors in their serum which supports an autoimmune basis

for disease.

PeaceHealth Laboratories