Serum bilirubin levels: A warning for those in Australia
Don't know how serum bilirubin is tested in other countries, but here in Australia when your doctor orders a liver enzyme blood panel, it's your total bilirubin levels that is measured and displayed in your blood test report. The issue here is, that total bilirubin levels won't necessarily inform you if your gallbladder function is compromised. You need to test direct bilirubin levels for that, which isn't routinely done and your total bilirubin may fall within range, typically considered under 20umol/L, but your direct bilirubin level may still be above range, like above 6umol/L and so your doctor may not flag any issue.
Example. My total bilirubin is 13umol/L, which seems good as is mid range. I still had symptoms though and read about direct bilirubin levels and ordered my own blood tests, specifically measuring direct bilirubin and my direct bilirubin level is 8umol/L, when it should be under 6.