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Test Code LAB2503 Bilirubin with Fractions

Important Note

Order Bilirubin with Fractions when direct neonatal bilirubin is ordered.

Additional Codes

CPT Code: 82247 and 82248

Methodology

This test is also included in Liver Panel (Hepatic Function) (LAB20).

Performing Laboratory

TidalHealth Peninsula Regional - Core Laboratory: Chemistry

Specimen Requirements

Pediatrics

Draw a full plain, brown-top MICROTAINER, and send 0.7 mL of whole blood. Hemolyzed specimen is not acceptable.

Note: 1. Indicate whole blood.

2. Label specimen appropriately (whole blood).

 

Adults

Submit only 1 of the following specimens:

 

Plasma
Draw blood in a green-top (lithium heparin) tube. Spin down and send 2 mL of lithium heparin plasma. Hemolyzed specimen is not acceptable.
Note: 1. Indicate plasma.

2. Label specimen appropriately (plasma).

 

Serum
Draw blood in a gold-top serum gel tube. Spin down and send 2 mL of serum. Hemolyzed specimen is not acceptable.

Note: 1. Indicate serum.

2. Label specimen appropriately (serum).

Reference Values

BILIRUBIN, DIRECT

0-13 days: 0.0-1.2 mg/dL

≥14 days: 0.0-0.5 mg/dL

BILIRUBIN, INDIRECT

0.0-0.9 mg/dL

BILIRUBIN, TOTAL

0 day: 0.0-6.0 mg/dL
1 day: 0.0-8.0 mg/dL

2-6 days: 0.0-12.0 mg/dL

7-30 days: 0.0-7.0 mg/dL

1 month-17 years: 0.0-2.0 mg/dL

≥18 years: 0.3-1.2 mg/dL

Critical values (automatic call-back)

0-1 days: ≥7.5 mg/dL

2 days: ≥11.0 mg/dL

3 days: ≥13.0 mg/dL

4 days: ≥14.0 mg/dL

5 days-2 months: ≥15.0 mg/dL