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Bilirubin, Fractionated
Test Code7286
CPT Codes
82247, 82248
Preferred Specimen
1 mL serum collected in a serum separator tube (red-top) SST
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in a sodium heparin (green-top) or lithium heparin (green-top) tube
Instructions
Protect from light. Please place in an amber vial or wrap plastic vial in foil. Avoid hemolysis.
Transport Temperature
Frozen
Specimen Stability
Room temperature: 24 hours*
Refrigerated: 72 hours*
Frozen: 90 days*
*If protected from light
Refrigerated: 72 hours*
Frozen: 90 days*
*If protected from light
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Anticoagulants other than heparin
Methodology
Spectrophotometric
Setup Schedule
A.M. Sets up 7 days a week.
Report Available
Reports in 1 day.
Clinical Significance
Patients with hepatobiliary disease or damage exhibit increased concentrations of Total bilirubin. Many drugs can impair or damage liver function. Direct bilirubin measurement and Indirect bilirubin calculation provides additional information concerning the etiology of an increased Total bilirubin concentration. Often, the fractions are more sensitive than the Total bilirubin measurement.
