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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, gold-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 - 1 month: < 0.60 mg/dL

> 1 month: ≤ 0.30 mg/dL

Bilirubin, Indirect

≤ 0.9 mg/dL

Total Bilirubin

0-1 day: ≤ 6.00 mg/dL 

1-2 days: < 7.50 mg/dL

2-3 days: <11.00 mg/dL

3-7 days: ≤ 12.00 mg/dL

7-30 days : ≤ 7.00 mg/dL

1 month - 18 years: ≤ 1.00 mg/dL

> 18 years: ≤ 1.20 mg/dL

 

Critical values (automatic call-back)

0-1 days: >7.50 mg/dL

1-2 days: ≥7.50 mg/dL

2-3 days: ≥11.00 mg/dL

3-4 days: ≥13.00 mg/dL

4-5 days: ≥ 14.00 mg/dL

5-60 days: ≥ 15.00 mg/dL