TBili

Medical abbreviation · Laboratory Test

TBili
Stands forTotal bilirubin
CategoriesMedical

TBili stands for Total bilirubin, a laboratory test abbreviation.

Sum of unconjugated and conjugated bilirubin, the yellow pigment produced when red cells break down hemoglobin. Adult values are about 0.1 to 1.2 mg/dL, and jaundice becomes visible above roughly 2.5 to 3 mg/dL; causes include hemolysis, Gilbert syndrome, liver disease and bile duct obstruction.

Example: TBili 6.8 with a dilated CBD on ultrasound; GI consulted for ERCP.

Usage notes

Also written T bili, Tbili or TB. Gilbert syndrome, an inherited and harmless reduction in bilirubin conjugation affecting a few percent of people, causes mild unconjugated rises during fasting or illness. Newborn jaundice is assessed with age-specific charts rather than adult ranges. Bilirubin is part of the MELD and Child-Pugh scores for liver disease severity.

More laboratory test abbreviations

  • SGPT – Serum glutamic-pyruvic transaminase
  • SPEP – Serum protein electrophoresis
  • SST – Serum separator tube
  • T&C – Type and crossmatch
  • T&S – Type and screen
  • TAT – Turnaround time
  • TC – Total cholesterol
  • TDM – Therapeutic drug monitoring
  • TFT – Thyroid function tests
  • TG – Triglycerides
  • TIBC – Total iron-binding capacity
  • TP – Total protein

See all 135 laboratory test abbreviations →

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.