A 64-year-old male asked:
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just got lab test results with ast: 45 and alt: 68. normal weight (5' 8", 149 pounds), rarely drink alcohol, m, age 64. no hist of liver probs. ideas?

2 doctor answers
Dr. Andrew Seibert
35 years experience Gastroenterology
Abnormal LFTs: there are entire text books written on the causes of abnormal liver tests. They may be indicative of liver problems. The first thing to do is repeat the test in a few weeks to be sure they are truly abnormal. If they are, then a work up of the liver and of the rest of the body, including test for various causes of hepatitis, should be considered. Good luck.
Answered on May 7, 2015
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Dr. Lewis Hassell
39 years experience Pathology
Liver enzyme levels: These levels are close enough to normal for some labs that the reference ranges are needed to properly interpret them. They may be mildly elevated which could be due to a host of possible causes, or could be due to "normal" variation. If they are persistently elevated then further study to look for causes, such as viruses, and a more thorough history should be considered.
Answered on Aug 4, 2015
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