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20157:PLATELET COUNT
Alias Names:Plt Ct
Methodology:Automated cell counter
Edit Date:7/13/2009
Performed:Daily
Released:Same day as tested
CPT Code:85049
Specimen Collection Details
Collection:One 4 mL lavender top tube (EDTA). Fill tube at least 1/3 full. Refrigerate.
Handling:Send to laboratory same day, or make slides and submit with blood within 48 hours maximum.
Standard Volume:3 mL EDTA whole blood.
Minimum Volume:250 µL EDTA whole blood in 1.0 mL microcollection tube.
Transport:Refrigerated.
Comments:WBC and platelet count may decline after 24 hours.
Rejection Criteria:Frozen or clotted specimen; marked hemolysis.