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BILIRUBIN, TOTAL AND DIRECT
MessageChemistry
Test Code
LAB168
Alias/See Also
Bilirubin, BUBC, BILINB, Newborn Bili
CPT Codes
82247
Includes
Adult:
Total Billirubin, Conjugated Bilirubin, Unconjugated bilirubin, Calculated Direct bilirubin
Neonatal:
Newborn Conjugated & Unconjugated Bilirubin
Cord Blood:
Conjugated & Unconjugated Bilirubin
Preferred Specimen
Adult:
Light green top tube (lithium heparin plasma)
Neonatal:
Light green top tube (lithium heparin plasma)
Cord Blood:
Red top tube
Minimum Volume
Whole blood: 600 uL (one full light-green-top microtainer or two full red-top microtainers).
Serum/plasma: 300 uL plasma.
Serum/plasma: 300 uL plasma.
Other Acceptable Specimens
Adult:
Gold top (serum separator tube) or Red Top Acceptable
Neonatal:
Red Top Acceptable
Instructions
Adult:
Serum acceptable. Includes Conjugated, Unconjugated and "Delta" Bilirubin, if Total Bilirubin is over 1.3 mg/dl.
LAB: Separate specimen within 4 hours of collection. Protect from light. .
Neonatal:
Protect from light. Includes Conjugated Bilirubin and Unconjugated Bilirubin.
Cord Blood:
Protect from light. Includes Conjugated Bilirubin and Unconjugated Bilirubin.
Specimen Stability
Ambient: up to 4 hours.
Refrigerated: 7 days.
Frozen: 6 months.
Refrigerated: 7 days.
Frozen: 6 months.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed, contaminated, not enough volume
FDA Status
Approved
Setup Schedule
Everyday
Report Available
Same Day
Reference Range
Adult:
Total: 0.2 - 1.3 mg/dl
Conjugated: 0.0 - 0.3 mg/dl
Unconjugated: 0.0 - 1.1 mg/dl
"Delta": 0.0 - 0.2 mg/dl
Neonatal:
Age 2 days: 6.0-7.0 mg/dl
Age 3-5 days: 4.0-12.0 mg/dl
*Note: Newborn Bilirubin is the sum of conjugated and unconjugated bilirubin.
Cord Blood:
Cord Blood Bilirubin: 0 - 1.8 mg/dl (Sum of conjugated and unconjugated bilirubin)
Performing Laboratory
Hoag Newport/ Hoag Irvine
