Test Overview
Test Methodology

Diazo-based method

Test Usage

Liver function test useful in the diagnosis of jaundice due to liver disease, hemolytic anemia, and ABO/Rh incompatibility.

Reference Range *

No reference range for < 1 yr old.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

4 hours

Soft Order Code
NTBIL Neonatal Total Bilirubin
MiChart Code
NTBIL Neonatal Total BIlirubin
Chemical Pathology
STAT Limitations

STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).

Specimen Requirements
Collection Instructions

Collect specimen in an SST tube. Centrifuge, aliquot serum into plastic vial and refrigerate. Protect specimen from light (place in brown plastic bag or aliquot into brown tube). NBILI (Neonatal Bilirubin, Fractions instead of Total Bilirubin(TBIL) is recommended for neonates <1 yr old.

Special Handling

Protect specimen from light.

Alternate Specimen
Lithium Heparin green top tube (Plasma)
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Additional Information

Test includes total bilirubin only