Jaundice in adults isn't a condition itself but a symptom of an underlying issue, and its presence is indicated by elevated bilirubin levels. Normal bilirubin levels, which are pertinent to understanding jaundice, are described below:
| Bilirubin Type | Normal Range (mg/dL) | Normal Range (μmol/L) |
|---|---|---|
| Total Bilirubin | 0.3 - 1.0 | 5.1 - 17 |
| Indirect Bilirubin | 0.2 - 0.8 | 3.4 - 12.0 |
| Direct Bilirubin | 0.1 - 0.3 | 1.7 - 5.1 |
These values, as of November 18, 2019, represent the baseline range of bilirubin levels where jaundice is typically not apparent. Jaundice becomes visible when bilirubin levels rise above these ranges, particularly when total bilirubin exceeds 2.5-3 mg/dL.
- Total Bilirubin: This measure includes both direct and indirect bilirubin and provides an overall assessment.
- Indirect Bilirubin: It's also known as unconjugated bilirubin and is formed when red blood cells break down.
- Direct Bilirubin: This is also known as conjugated bilirubin, which is a processed form of bilirubin in the liver.
Elevated levels of total bilirubin above the normal range, specifically 0.3-1.0 mg/dL or 5.1-17 μmol/L, is what typically signals jaundice in adults. It's important to note that these ranges can vary slightly depending on the lab and individual circumstances.
It is worth noting that "jaundice range" does not exist as a specific range, as it is not a condition with specific parameters itself. Instead, the term "normal range for jaundice" refers to the baseline values of bilirubin levels that indicate that jaundice is not present. As the level rises above these ranges, the symptoms of jaundice can begin to appear.
