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Aspartate Aminotransferase
Aka: Aspartate Aminotransferase, Serum Glutamic Oxaloacetic Transaminase, Glutamic oxaloacetic transaminase, Serum AST, AST, SGOT
- See Also
- Alanine Aminotransferase
- Liver Function Test Abnormality
- Liver Function Test
- Definition
- Serum transaminase marker of hepatocyte injury
- Less specific than ALT (present outside liver)
- Normal
- Level: <35 U/L
- Increased
- See Liver Function Test Abnormality
- Sensitive marker for hepatocellular marker
- Same causes as Alanine Aminotransferase (ALT)
- AST is less specific then ALT (present outside liver)
- Heart, lung, Kidney, brain, Pancreas, muscle
- White Blood Cells and Red Blood Cells
- Liver disease causes of increased AST
- See Alanine Aminotransferase (ALT)
- Non-liver disease causes of increased AST
- Myocardial Infarction
- Myocarditis
- Renal Infarction
- Pulmonary infarction
- Severe muscle trauma
- Dermatomyositis
- Polymyositis
- Malignancy
- Seizure disorder
- Hyperthyroidism
- Celiac Sprue
- Hemolysis
- Conditions with ratio of ALT to AST > 2
- Alcoholism
- Wilson's Disease (ratio may exceed 4)