What's Behind the Lab Tests for Jaundice?

Published: Aug 07, 2024

Understanding lab tests for jaundice can demystify this condition and aid in early detection of underlying health issues.

Initial Lab Tests

The first step involves measuring serum bilirubin levels, both total and unconjugated, as well as aminotransferases and alkaline phosphatase. These tests help determine if the liver or bile ducts are involved. Abnormal results can indicate jaundice and suggest further testing is needed.

Patterns of Injury

Lab tests can reveal patterns like cholestatic or hepatocellular injury. Cholestatic patterns show high alkaline phosphatase levels, while hepatocellular patterns show high aminotransferase levels. These patterns help pinpoint the problem's source.

Lab tests for jaundice involve measuring serum bilirubin levels, aminotransferases, and alkaline phosphatase to detect liver or bile duct involvement.

Advanced Imaging

If lab tests suggest bile duct issues, imaging such as ultrasound, MRCP, or EUS may be used. These tests visualize the bile ducts to check for blockages or other abnormalities. Confirming the presence of obstruction guides treatment options.

Frequently Asked Questions

Key tests include serum bilirubin, aminotransferases, and alkaline phosphatase levels.

It indicates elevated alkaline phosphatase levels, suggesting bile duct obstruction or liver issues.

Imaging helps confirm bile duct blockages when lab tests indicate potential obstruction.

Key Takeaways

Lab tests are vital tools in assessing jaundice and determining the appropriate course of action.

Get started by discussing your lab results with Doctronic to better understand your health.

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References

Saini S. Imaging of the hepatobiliary tract. N Engl J Med 1997; 336:1889.

Newsome PN, Cramb R, Davison SM, et al. Guidelines on the management of abnormal liver blood tests. Gut 2018; 67:6.

Always discuss health information with your healthcare provider.