This ratio compares bilirubin to albumin, offering context for jaundice and overall liver balance.
The bilirubin/albumin ratio is a calculated value, not a separate blood test. It is total bilirubin divided by albumin. It is used in specific settings, most notably to help assess the risk of bilirubin reaching the brain in newborns with jaundice.
A higher ratio means more bilirubin relative to the albumin available to bind it, leaving more free bilirubin that could cross into tissues. In newborn care it is one input alongside total bilirubin when deciding on treatment. In adults it has been studied as a prognostic marker in liver and critical illness.
Aniva reads your result against research-backed ranges, not just the lab's wide normal. The reference shown below is specific to this biomarker.
Thresholds are context specific and not a single universal range. The notes below are illustrative and should not be applied to adults.
| Setting | Note |
|---|---|
| Newborn jaundice | Used with total bilirubin and gestational age in treatment thresholds |
| Adults | No firmly established cut-off; used in research as a prognostic index |
Source: American Academy of Pediatrics hyperbilirubinemia guideline.
Anything affecting bilirubin or albumin affects the ratio: haemolysis, liver disease, fasting (can raise bilirubin), illness and inflammation (lower albumin), and certain medicines that displace bilirubin from albumin.
Best read with its components, total bilirubin and albumin, plus the full liver panel and clinical context.
What does a high result mean? It suggests more bilirubin compared with albumin. This can occur with bile flow problems, liver stress, or low albumin; discuss next steps with your clinician.
Do I need to fast for this test? No. Fasting is not required for the bilirubin/albumin ratio.
What can affect the result? Some medicines (like rifampin or atazanavir), high-dose vitamin C, dehydration, recent hard exercise, and sample handling can shift results.
How often should I check it? Testing is usually done when there are symptoms, abnormal liver tests, or for follow-up. Your clinician may repeat it to track trends.
How quickly will I get results? Results are usually ready in about 7 days.
What should I discuss with my clinician? Share all medicines and supplements, alcohol use, and any symptoms such as yellow skin, dark urine, pale stools, or fatigue.
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