Biomarkers · Chemical
Bilirubin, Total
A bilirubin blood test measures the levels of bilirubin in your blood. Bilirubin is a yellowish substance made during your body's normal process of breaking down old red blood cells.
Bilirubin Blood Test, MedlinePlus, National Library of Medicine
- Also listed as
- total bilirubin, tbil
- Primary unit
- mg/dL
- LOINC codes
- 1975-2
- Tests that measure Bilirubin, Total
- Quest Diagnostics 22, Labcorp 21
Ranges
Compare the reference ranges labs publish with guideline targets, diagnostic cut-offs, study-based ranges and practitioner targets. Move across the rows to check a value against each range, and open a source from the legend. How to read these ranges
Bilirubin, Total, mg/dL
- Lab reference ranges2 labs
All 2 published ranges, with sources
Lab reference ranges
Quest, adults 20 and older0.2 to 1.2 mg/dL
Adults 20 and older
Quest Diagnostics Test Directory, Bilirubin, Total (287), 2025
Labcorp, children 1 month and older and adults0 to 1.2 mg/dL
Age 1 month and older
Tests
Check the catalog code, specimen, method and preparation for every test that measures Bilirubin, Total. Select up to five tests to compare them side by side.
Quest Diagnostics 22 tests
Single-analyte tests
Bilirubin, Total 287
Serum · Fasting not stated · Turnaround Set up: Mon-Sat; Report available: 3 days
Quest Diagnostics catalog pageMethod and collection
- Method
- Spectrophotometry (SP)
- Collection
- Protect from light by wrapping a spun SST in foil or transferring serum or plasma to an amber transport vial. Avoid hemolysis.
- Reference notes
- ≤1 Day | ≤5.1 mg/dL 2 Days | ≤7.2 mg/dL 3-5 Days | ≤10.3 mg/dL 6-7 Days | ≤8.4 mg/dL 8-9 Days | ≤6.5 mg/dL 10-11 Days | ≤4.6 mg/dL 12-13 Days | ≤2.7 mg/dL 14 Days-9 Years | 0.2-0.8 mg/dL 10-19 Years | 0.2-1.1 mg/dL ≥20 Years | 0.2-1.2 mg/dL
Bilirubin, Total and Direct, Neonatal 6631
Serum · Fasting not stated · Turnaround Set up: Mon-Sat; Report available: 3 days
Quest Diagnostics catalog pageMethod and collection
- Method
- Spectrophotometry (SP)
- Collection
- Patient should be less than 60 days of age. Draw 2 amber Microtainer® serum separator tubes (SSTs) or wrap 2 spun Microtainer® serum separator tubes (SSTs) in foil. Avoid hemolysis.
- Reference notes
- Bilirubin, Direct ≤0.3 mg/dL Bilirubin, Indirect ≤1 Day ≤5.1 mg/dL (calc) 2 Days ≤7.2 mg/dL (calc) 3-5 Days ≤10.3 mg/dL (calc) 6-7 Days ≤8.4 mg/dL (calc) 8-9 Days ≤6.5 mg/dL (calc) 10-11 Days ≤4.6 mg/dL (calc) 12-13 Days ≤2.7 mg/dL (calc) 14 Days - 9 Years 0.2-0.8 mg/dL (calc) 10-19 Years 0.2-1.1 mg/dL (calc) ≥20 Years 0.2-1.2 mg/dL (calc) Bilirubin, Total ≤1 Day ≤5.1 mg/dL 2 Days ≤7.2 mg/dL 3-5 Days ≤10.3 mg/dL 6-7 Days ≤8.4 mg/dL 8-9 Days ≤6.5 mg/dL 10-11 Days ≤4.6 mg/dL 12-13 Days ≤2.7 mg/dL 14 Days - 9 Years 0.2-0.8 mg/dL 10-19 Years 0.2-1.1 mg/dL ≥20 Years 0.2-1.2 mg/dL
Bilirubin, Total, Neonatal 20381
Serum · Fasting not stated
Quest Diagnostics catalog pageMethod and collection
- Method
- Spectrophotometry (SP)
- Collection
- Patient should be less than 60 days of age. Draw 2 amber Microtainer® serum separator tubes (SSTs) or wrap 2 spun Microtainer® serum separator tubes (SSTs) in foil. Avoid hemolysis.
- Reference notes
- ≤1 Day ≤5.1 mg/dL 2 Days ≤7.2 mg/dL 3-5 Days ≤10.3 mg/dL 6-7 Days ≤8.4 mg/dL 8-9 Days ≤6.5 mg/dL 10-11 Days ≤4.6 mg/dL 12-13 Days ≤2.7 mg/dL 14 Days-9 Years 0.2-0.8 mg/dL 10-19 Years 0.2-1.1 mg/dL ≥20 Years 0.2-1.2 mg/dL
Panels that include this biomarker
Bilirubin, Fractionated 7286
2 analytes · Serum · Fasting not stated
Quest Diagnostics catalog pageMethod and collection
- Method
- Spectrophotometry (SP)
- Collection
- Protect from light. Avoid hemolysis.
- Reference notes
- Bilirubin, Total ≤1 Day | ≤5.1 mg/dL 2 Days | ≤7.2 mg/dL 3-5 Days | ≤10.3 mg/dL 6-7 Days | ≤8.4 mg/dL 8-9 Days | ≤6.5 mg/dL 10-11 Days | ≤4.6 mg/dL 12-13 Days | ≤2.7 mg/dL 14 Days - 9 Years | 0.2-0.8 mg/dL 10-19 Years | 0.2-1.1 mg/dL ≥20 Years | 0.2-1.2 mg/dL Bilirubin, Direct | ≤0.2 mg/dL Bilirubin, Indirect ≤1 Day | ≤5.1 mg/dL (calc) 2 Days | ≤7.2 mg/dL (calc) 3-5 Days | ≤10.3 mg/dL (calc) 6-7 Days | ≤8.4 mg/dL (calc) 8-9 Days | ≤6.5 mg/dL (calc) 10-11 Days | ≤4.6 mg/dL (calc) 12-13 Days | ≤2.7 mg/dL (calc) 14 Days - 9 Years | 0.2-0.8 mg/dL (calc) 10-19 Years | 0.2-1.1 mg/dL (calc) ≥20 Years | 0.2-1.2 mg/dL (calc)
Hepatic Function Panel without Total Protein 34391
7 analytes · Serum · Fasting not stated
Quest Diagnostics catalog pageMethod and collection
- Method
- See individual tests
Hepatic Function Panel 10256
10 analytes · Serum · Fasting not stated · Turnaround Set up: Mon-Sat; Report available: 3 days
Quest Diagnostics catalog pageMethod and collection
- Method
- See individual tests
- Collection
- Administration of STRENSIQ may interfere in certain assays and may falsely elevate values. For patients receiving STRENSIQ, consideration should be given to using alternate methods.
- Reference notes
- See Laboratory Report
Hepatic Function Panel, Plasma 90842
10 analytes · Plasma · Fasting not stated
Quest Diagnostics catalog pageMethod and collection
- Method
- See individual tests
- Collection
- Separate plasma from cells promptly Note: For serum Hepatic Function Panel, please see test code 10256
- Reference notes
- See Laboratory Report
Hepatic Function Panel with FIB-4 Index with Reflex to ELF Score 12735
12 analytes · Serum · Fasting not stated
Quest Diagnostics catalog pageMethod and collection
- Method
- Electronic Cell Sizing/Counting/Cytometry/Microscopy • Spectrophotometry (SP)
- Reference notes
- See Laboratory Report
Labcorp 21 tests
Single-analyte tests
Bilirubin, Total 001099
Serum · Fasting not stated · Turnaround Within 1 day
Labcorp catalog pageMethod and collection
- Method
- Colorimetric
- Collection
- Separate serum or plasma from cells within 45 minutes of collection.
- Reference notes
- See table. Age Range (mg/dL) Newborns, term, and near term 24 hours 0.0−8.0 48 hours 0.0−13.2 72 hours 0.0−15.6 96 hours to 1 month 0.0−16.6 Children ≥1 month and adults 0.0−1.2
Bilirubin, Total, Neonatal 015602
Serum · Fasting not stated · Turnaround Within 1 day
Labcorp catalog pageMethod and collection
- Method
- Kinetic
- Collection
- If a red-top tube or plasma is used, transfer separated serum or plasma to a plastic transport tube. Protect from light.
Panels that include this biomarker
Bilirubin Fraction, Neonatal 205500
3 analytes · Serum · Fasting not stated · Turnaround Within 1 day
Labcorp catalog pageMethod and collection
- Method
- Kinetic
- Collection
- If a red-top tube or plasma is used, transfer separated serum or plasma to a plastic transport tube. Protect from light.
Bilirubin, Total and Direct 001214
3 analytes · Serum · Fasting not stated · Turnaround Within 1 day
Labcorp catalog pageMethod and collection
- Method
- Colorimetric
- Collection
- Separate serum or plasma from cells within 45 minutes of collection.
Drug-Induced Liver Injury Profile 010045
6 analytes · Serum · Fasting not stated · Turnaround Within 1 day
Labcorp catalog pageMethod and collection
- Method
- See individual tests.
- Collection
- Serum or plasma: Separate serum or plasma from cells within 45 minutes of collection. PT with INR blood: Blood should be collected in a blue-top tube containing 3.2% buffered sodium citrate. Evacuated collection tubes must be filled to completion to ensure a proper blood-to-anticoagulant ratio. The sample should be mixed immediately by gentle inversion at least six times to ensure adequate mixing of the anticoagulant with the blood. A discard tube is not required prior to collection of coagulation samples unless the sample is collected using a winged (butterfly) collection system. With a winged blood collection set a discard tube should be drawn first to account for the dead space of the tubing and prevent under-filling of the evacuated tube. When noncitrate tubes are collected for other tests, collect sterile and nonadditive (red-top) tubes prior to citrate (blue-top) tubes. Any tube containing an alternative anticoagulant should be collected after the blue-top tube. Gel-barrier tubes and serum tubes with clot initiators should also be collected after the citrate tubes. Print and use the Volume Guide for Coagulation Testing to ensure proper draw volume.
Hepatic Function Panel (7) 322755
7 analytes · Serum · Fasting not stated · Turnaround Within 1 day
Labcorp catalog pageMethod and collection
- Method
- See individual tests.
- Collection
- Separate serum or plasma from cells within 45 minutes of collection.
Hepatitis B Virus (HBV) FibroSure® 550605
8 analytes · Serum · Fasting not stated · Turnaround 3 - 5 days
Labcorp catalog pageMethod and collection
- Method
- See individual test components.
- Preparation
- Patient should be fasting for at least eight hours.
- Collection
- Separate serum from cells within two hours of collection, and transfer serum to a transfer tube.
0 of 5 tests selected
Pick one moreGoals and conditions
We link Bilirubin, Total to these goals and conditions from named guidelines and studies.
Liver healthGoal, primary marker
The ACG guideline names bilirubin among the most commonly ordered liver chemistries.
Sources
21 tests: codes, specimens, methods, preparation and reference intervals.
Quest Diagnostics test catalog
22 tests: codes, specimens, methods, preparation and reference intervals.
Clinical guideline: Liver health (primary)
Labcorp test menu, Bilirubin, Total (001099), 2026
Laboratory catalog: Range: Labcorp, children 1 month and older and adults
Quest Diagnostics Test Directory, Bilirubin, Total (287), 2025
Laboratory catalog: Range: Quest, adults 20 and older
MedlinePlus, National Library of Medicine
The description at the top of this page.
LOINC 1975-2
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for Bilirubin, Total
Registered studies that measure Bilirubin, Total, on the U.S. National Library of Medicine registry.
Verify these ranges and sources
We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.
Interpret your own results with a licensed clinician, or track your lab history and health goals in Aumnivida.
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