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HelpTest Code MISC1WARDEFCERR Chronic Urticaria
Department
SEND OUTS
Reference Lab Test Number
FCERR
Collection Requirements
Patient preparation: After consulting with their physician, patients taking calcineurin inhibitors should stop their medication for 72 hours prior to draw. Patients taking prednisone should stop their medication for 2 weeks prior to draw.
Refer To
Primary Collection Container
Gold (SST)
Alternate Collection Container
Red (No Gel)
Transport
Serum ambient
Preferred Transport Temperature
Ambient
Processing
Draw blood in a SST.
Centrifuge, separate and send 2.0 mL serum.
Stability
Ambient: 7 days
Refrigerated: 7 days
Frozen: 14 days
Minimum Testing Volume
1.0 mL
Reference Range
<10
Methodology
Cell Culture and Histamine analysis
Performed
Monday, Wednesday, and Friday
Reported
6-8 days
CPT Codes
-86352