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Test Code LAB52 Bilirubin, Direct

Department

CHEMISTRY

Collection Requirements

PROTECT FROM LIGHT.

Primary Collection Container

Green PST (Lithium Heparin)

Alternate Collection Container

Green Microtainer PST

Transport

Refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Centrifuge and refrigerate.

Separate from cells if testing is delayed more then 8 hours.

Deliver to chemistry ASAP.

Stability

Refrigerated: 7 days, when protected from light and separated from cells. Frozed: 6 months

Minimum Testing Volume

0.5 mL

Reference Range

0-14 days 0.1-0.5 mg/dL

>14 days 0.1-0.5 mg/dL

Methodology

The Roche Diagnostics Direct Bilirubin method, based on the Jendrassik Grof procedure, is standardized against the manual direct bilirubin procedure of Lo and Wu.4

Performed

Sunday – Saturday

Reported

As completed

CPT Codes

82248

Unacceptable Conditions

Exposure to light for extended periods.