Bilirubin, Total and Direct

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Category:

Turnaround Time: Within 1 day
CPT Code:

82247, 82248

Test Type: 3 mL Serum (preferred) or plasma
Stability Time:

Temperature

Period

Room temperature

2 days

Refrigerated

3 days

Frozen

14 days

Freeze/thaw cycles

Stable x2

Reference Range:

Bilirubin, Total 0.0 - 1.2

Bilirubin, Direct 0.00 - 0.40

Bilirubin, Indirect 0.10 - 0.80

Overview:

Liver and biliary tests are useful in the differential diagnosis of jaundice from bilirubin overproduction (hemolysis), decreased uptake (Gilbert disease), decreased conjugation (hepatocellular disease, familial, drug-induced, pregnancy; obstructive bile duct disease).

Collection Details:

Collection Instructions:

Red-top tube, gel-barrier tube, or green-top (lithium heparin) tube.

Separate serum or plasma from cells within 45 minutes of collection.

Refrigerate.