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Bilirubin, Total
Test Code38442
CPT Codes
82247<br>Limited Access Code
Preferred Specimen
1 mL serum collected in a serum separator tube (SST) - protected from light
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in sodium or lithium heparin (green-top) tube, or plasma serum separator tube (PST) - protected from light
Instructions
Protect from light by wrapping a spun SST® in foil or transferring serum/plasma to an amber transport vial; Avoid hemolysis.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: 90 days
Refrigerated: 72 hours
Frozen: 90 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Anticoagulants other than heparin
Methodology
Spectrophotometry
Setup Schedule
Set up: Daily; Report available: Next day
Reference Range
Age | (mg/dL) |
1 day | ≤5.1 |
2 days | ≤7.2 |
3-5 days | ≤10.3 |
6-7 days | ≤8.4 |
8-9 days | ≤6.5 |
10-11 days | ≤4.6 |
12-13 days | ≤2.7 |
14 days-9 years | 0.2-0.8 |
10 years | 0.2-1.1 |
≥20 years | 0.2-1.2 |
Clinical Significance
Measurement of levels of bilirubin is used in the diagnosis and treatment of liver, hemolytic, hematologic, and metabolic disorders, including hepatitis and gall bladder obstructive disease.