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Test Directory


Bilirubin Total

Order Name BILI TOT
Test Number: 2000950
Revision Date 07/20/2020
Test Name Methodology LOINC Code
Bilirubin Total
Jendrassik-Grof 1975-2 
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Alternate 1 1 mL (0.5) Serum Clot Activator SST Refrigerated
Instructions Protect From Light.
Exposure to direct sunlight can decrease bilirubin in samples up to 50% within one hour.
Light protected preferred; specimens not protected from light but refrigerated/frozen will be accepted.
Stability: Ambient=8 hours (if light protected); Refrigerated=3 days; Frozen=3 months
Testing Schedule Daily 
Expected TAT 1-2 days  
Clinical Use Useful in the diagnosis of jaundice and treatment of liver, hemolytic, hematologic and metabolic disorders including hepatitis and gallbladder blockage. Total bilirubin is composed of direct (conjugated) and indirect (unconjugated) bilirubin. Direct bilirubin performed if total bilirubin is greater than 1.2 (82448). 
CPT Code(s) 82247
Lab Section Chemistry