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Methodology
Colorimetric Absorbance
Performing Laboratory
Rutland Regional Medical Center Laboratory
Specimen Requirements
Specimen Type: Blood
Container/Tube: Serum
Preferred: Light-green top (lithium heparin gel)
Acceptable: Gold top, serum gel
Specimen Volume: Full tube
Specimen Minimum Volume: 2 mL
Collection Instructions:
1. Fasting (10-12 hours), only water is allowed.
2. Send specimen in original tube.
3. If there is a delay in transport of >1 hour, centrifuge tube.
Specimen Transport Temperature
Refrigerated
Normal Reference Values
74 - 106 mg/dL
Day(s) Performed
Daily
Analytic Time:
1 day
Available STAT
Test Classification and CPT Coding
82947
Critical Values
Pediatric:
0-1 day <36 and >200 mg/dL
1-7 days <47 mg/dL or >200 mg/dL
8 days - 18 days <50 and >500 mg/dL
Adult:
<50 mg/dL or >500 mg/dL