33521:BILIRUBIN, NEONATAL TOTAL AND DIRECT

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33521:BILIRUBIN, NEONATAL TOTAL AND DIRECT
Methodology: Diazo (Direct), Jendrassik-Grof (Total)
Edit Date: 6/11/2010
Performed: Daily
Released: Same day as tested
CPT Code: 82247 / 82248
Specimen Collection Details
Collection: One 2 mL serum separator pediatric tube. Also acceptable: One 4.5 plasma separator tube (PST). Protect specimen from light by wrapping in foil.
Handling: Transport in original tube. If specimen cannot be analyzed within 2 hours, centrifuge, separate serum from cells and pour into a plastic tube. Wrap specimen in foil.
Stability: 8 hours ambient, 48 hours refrigerated.
Standard Volume: 1 mL serum or plasma.
Minimum Volume: 0.3 mL serum or plasma.
Transport: Refrigerated.
Comments: Neonatal bilirubin is used to measure the total bilirubin in neonates under 15 days of age.
Rejection Criteria: Gross hemolysis; specimen excessively exposed to light.

Reference Range:
Bilirubin, Neonatal 0.6-10.5 mg/dL
Bilirubin, Direct, (conjugated) 0.1-0.6 mg/dL
Bilirubin, Indirect, (unconjugated) 0.6-10.5 mg/dL

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