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Conjugated Bilirubin, Dialysate — Substance Concentration

Published: August 9, 2026Updated: August 16, 2026

Measures conjugated bilirubin in dialysis fluid to help assess bile drainage and liver function in patients receiving peritoneal dialysis.

Quick summary

["This test checks how much bilirubin has entered the dialysis fluid, which can provide information about liver function and bile drainage."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
53083-2
Short code
Bilirub Conj Dial fld-sCnc
Synonyms
Bilirub Conj Dial fld-sCnc
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

This test measures conjugated bilirubin, a form of bilirubin that has been processed by the liver, in dialysis fluid. Bilirubin is a yellow pigment produced during the breakdown of red blood cells.

Why might I need this test?

It may be used in people receiving peritoneal dialysis to help evaluate liver function and bile drainage. The result can also support assessment of possible bile leakage or reduced bile flow.

How is the test performed?

A laboratory analyzes a sample of dialysis fluid using a validated bilirubin measurement method. The result is reported as a substance concentration.

How do I prepare for the test?

No special preparation is usually needed beyond collecting the dialysis fluid as instructed by the dialysis team. Do not change your dialysis procedure or medication schedule without medical guidance.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Conjugated Bilirubin in Dialysate

Frequently asked questions

What is conjugated bilirubin?
Conjugated bilirubin is bilirubin that has been processed by the liver and is ready to be excreted in bile. It differs from unconjugated bilirubin, which has not yet been processed by the liver.
Why is this test measured in dialysis fluid?
Dialysis fluid can collect substances that move from the blood into the abdominal cavity. Measuring conjugated bilirubin in this fluid may help clinicians assess liver function and bile flow in people receiving peritoneal dialysis.
Does an abnormal result confirm a specific condition?
No. An abnormal result can suggest a problem with bile drainage or liver function, but it must be interpreted alongside other tests and clinical findings.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy