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Approach to the patient with abnormal liver tests
1State University of New York at Buffalo, USA.
Lippincott'S Primary Care Practice
|August 26, 1998
Summary
Abnormal liver blood tests indicate liver injury, with aminotransferases suggesting hepatocyte damage and alkaline phosphatase indicating biliary tree issues. Accurate diagnosis, including liver biopsy, is crucial for effective treatment and improved patient outcomes.
Area of Science:
- Hepatology
- Biochemistry
- Diagnostic Medicine
Background:
- Primary care physicians frequently encounter patients with abnormal liver blood tests.
- Understanding the cellular basis of these abnormalities aids in determining the cause of liver injury.
Observation:
- Elevated serum aminotransferases indicate hepatocyte injury.
- Elevated alkaline phosphatase suggests biliary tree damage.
- Liver function, not injury, is measured by serum bilirubin, albumin, and prothrombin time.
Findings:
- Diverse liver disorders can present with similar biochemical patterns.
- History, physical examination, and specific markers (e.g., hepatitis serology) help narrow the differential diagnosis.
- Liver biopsy remains the gold standard for definitive diagnosis of liver diseases.
Implications:
- Accurate diagnosis of liver disorders is essential for initiating timely and appropriate treatments.
- Improved diagnosis leads to enhanced quality of life and survival for patients with liver disease.