21250:EOSINOPHIL COUNT, BLOOD

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21250:EOSINOPHIL COUNT, BLOOD
Methodology: Automated or manual Eosinophil Count as appropriate
Edit Date: 1/18/2008
Performed: Daily
Released: Same day
CPT Code: 85048
Specimen Collection Details
Collection: One 4 mL lavender top tube (EDTA). Fill tube at least 1/3 full.
Handling: Refrigerate. Send to arrive at laboratory within 24 hours of collection.
Stability: 24 hours refrigerated. Unstable frozen.
Standard Volume: 4 mL EDTA whole blood.
Minimum Volume: 0.5 mL EDTA whole blood in a 1 mL microcollection tube.
Transport: Refrigerated.
Rejection Criteria: Clotted or frozen specimen; gross hemolysis.
MEDICARE MAY REQUIRE A SIGNED ADVANCE BENEFICIARY NOTICE (ABN) FOR THIS TEST

Reference Range:
Age EOS Count
0-6 days 0-900/uL
1-2 weeks 0-1100/uL
3-4 weeks 0-1000/uL
1 month – 6 years 0-700/uL
7-10 years 0-600/uL
> 10 years 0-330/uL