Serum Separator Tube (SST)
Minimal Sample Volume
SST: Allow SST to clot in an upright position for at least 30 minutes, then centrifuge sample within 2 hours of collection. Refrigerate. Red Top: Allow sample to clot in an upright position for at least 60 minutes, then centrifuge sample and transfer serum to a plastic transport tube within 2 hours of collection. Refrigerate.
Client Transport Temperature
1 day room temperature; 1 week refrigerated; 2 weeks frozen
Avoid repeated freeze/thaw cycles
Monday, Tuesday, Wednesday, Thursday, Friday
ImmunoCAP Fluoroenzyme Immunoassay (FEIA)
Frequency Limit Test For Medicare.
Advance Beneficiary Notice Of Non-Coverage (ABN) Always Required For Frequency.
Medicaid Limited To 30 Allergens Per Year.
Note: when ordering multiple IgE specific allergens, the
recommended specimen volume is:
for 2-24 allergens: minimum 2 mL serum.
For 25-40 allergens: minimum 3-4 mL serum.