31520:METHEMOGLOBIN, WHOLE BLOOD

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31520:METHEMOGLOBIN, WHOLE BLOOD
Methodology: Co-Oximetry
Edit Date: 3/17/2009
Performed: Daily
Released: Same day as tested
CPT Code: 83050
Specimen Collection Details
Collection: One 4 mL green top tube (heparin). Tube must be filled completely. Do not use plasma separator tube (PST).
Handling: Keep tube tightly stoppered and transport refrigerated in original tube.
Stability: 72 hours refrigerated. Best if analyzed immediately.
Standard Volume: 4 mL whole blood. Tube must be completely filled with blood.
Minimum Volume: 3 mL whole blood. Tube must be completely filled with blood. (pediatric: 0.5 mL whole blood in a syringe or capillary tube; needle MUST be removed and syringe capped).
Transport: Refrigerated.
Rejection Criteria: Collection tube not full; tubes other than green top (heparin).

0.0-1.5 g/dL