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CHOLINESTERASE, PLASMA AND RBC
Test Code214007
CPT Codes
82480; 82482
Includes
"Plasma cholinesterase; RBC cholinesterase
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Preferred Specimen
"Plasma and whole blood
2 mL plasma and 5 mL whole blood
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2 mL plasma and 5 mL whole blood
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Minimum Volume
"0.1 mL plasma and 1 mL whole blood
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Instructions
"Separate plasma from cells for one lavender-top tube, only. Place in transport tube and mark “plasma.” Do not separate other EDTA tube.
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Transport Container
"Lavender-top (EDTA) tube and transport tube marked “plasma”
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Transport Temperature
room temp
Specimen Stability
"Room temperature. Whole blood (RBC): Stable at room temperature or refrigerated for 14 days and unstable frozen. Plasma: Stable at room temperature, refrigerated, or frozen for 14 days; freeze/thaw cycles: stable x3.
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Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
"Plasma and whole blood samples not sent; anticoagulants other than EDTA (RBC only); frozen whole blood received; hemolyzed plasma or whole blood
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Methodology
"Spectrophotometry (Ellman)-kinetic "
Clinical Significance
"See Cholinesterase, Plasma (160200) and Cholinesterase, RBC (007286).
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