Bilirubin.glucuronidated+Bilirubin.albumin bound
ChemistryAlso known as: Bilirub Direct BldCo-mCncAlso known as: Bilirub Direct Fld-mCncAlso known as: Bilirub Direct Fld-sCncmg/dL
Except when measured by differential light absorption, direct bilirubin included glucuronidated and albumin bound (delta) bilirubin; Method can be WET CHEMISTRY or DRY SLIDE (TBIL-Bu)
Normal Range
0 – 0.3 mg/dL
mg/dL
Abnormal Levels
< 0 mg/dL
> 0.2 mg/dL
Specimen Type
Blood
Understanding Your Results
Normal Range
0 – 0.3 mg/dL
Optimal Ranges
Clinician-defined 4-point reference thresholds (mg/dL)
Default Range
0
0
0.2
0.2
Low
0 mg/dL
Borderline Low
0 mg/dL
Optimal
0.2 mg/dL
Borderline High
0.2 mg/dL
Overview
Except when measured by differential light absorption, direct bilirubin included glucuronidated and albumin bound (delta) bilirubin; Method can be WET CHEMISTRY or DRY SLIDE (TBIL-Bu)
Research & Evidence
100 publications
Sort:
Regulatory interplay between nitric oxide and heme in redox signaling and inflammation.
Redox Biol · 2026
PMID: 41861598
Food-Borne Advanced Lipoxidation End Products: From Processing-Induced Formation to Systemic Health Effects.
Compr Rev Food Sci Food Saf · 2026
PMID: 41981864
Ivonescimab combined with chemotherapy for the treatment of metastatic cervical cancer: A case report and literature review.
Hum Vaccin Immunother · 2026
PMID: 42012232
Monitoring and Managing of Ergot Alkaloids in Cereal Grains: A Comprehensive Analysis of Analytical Challenges, Sampling Uncertainty, and Processing for Food Safety.
Compr Rev Food Sci Food Saf · 2026
PMID: 41918152
Soluble isoforms of EGFR family in breast cancer: Advances and clinical relevance (Review).
Oncol Lett · 2026
PMID: 42038350
Grape seed proanthocyanidin extract suppresses bladder cancer by dual blockade of IMPDH1/2-mediated purine and pyrimidine nucleotide biosynthesis.
J Ethnopharmacol · 2026
PMID: 41962611
Research data from MEDLINE/PubMed · 100 articles
Technical Information (LOINC Codes)
Standardized laboratory codes for this biomarker
1968-7PrimaryBilirubin.direct [Mass/volume] in Serum or Plasma
mg/dL
48623-3Bilirubin.direct [Mass/volume] in Cord blood
mg/dL
14629-0Bilirubin.direct [Moles/volume] in Serum or Plasma
umol/L
14152-3Bilirubin.direct [Mass/volume] in Body fluid
mg/dL
43820-0Bilirubin.direct [Presence] in Serum or Plasma
25564-6Bilirubin.direct [Moles/volume] in Body fluid
umol/L
56905-3Bilirubin.direct [Mass/volume] in Pleural fluid
mg/dL
56906-1Bilirubin.direct [Mass/volume] in Peritoneal fluid
mg/dL
Available Lab Tests
Order tests that measure this biomarker