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Laboratory Test Directory

Functional Anti FceR (Updated)


Name Method Department Units
Functional Anti FceR Quantitative Enzyme Immunoassay
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Specimen Requirements

Serum Spun

Container Type Container Size Specimen Volume

Red tube, (no anticoagulant), No Gel

3 mL 2 mL

Red Tube (no anticoagulant) with Gel

3 mL 2 mL

Gold tube, (SST) with Gel

3.5 mL 2 mL

Room temperature - 1 week(s)
Frozen - 1 month(s)

Specimen Preparation

  • Allow to clot completely at room temperature
  • Centrifuge within 2 hours, separate supernatant and store at room temperature

Reasons for Rejection

  • Wrong type of specimen


Patients taking calcineurin inhibitors should stop their medication for 72 hours prior to draw. Patients taking prednisone should be off their medication for 2 weeks prior to draw.

CPT Code

  • 86352