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Contents
  • What Do Liver Tests Actually Measure?
  • When Are Liver Tests Abnormal?
  • Beyond Just Liver Disease

Are Your Liver Tests Normal? Why These Blood Tests Matter More Than You Think

Are Your Liver Tests Normal? Why These Blood Tests Matter More Than You Think

The Inside Scoop

Liver blood tests can reveal a lot about your health, even if you feel fine. These simple tests check for liver damage and disease, sometimes before symptoms appear.
Contents
  • What Do Liver Tests Actually Measure?
  • When Are Liver Tests Abnormal?
  • Beyond Just Liver Disease

What Do Liver Tests Actually Measure?

Liver tests look at several different substances in your blood. The most common ones are enzymes called ALT and AST, which leak into the blood when liver cells are damaged. Other important tests measure bilirubin, a yellow substance that can build up if your liver isn't working properly, and proteins like albumin that healthy livers produce.

When Are Liver Tests Abnormal?

Slightly elevated liver tests are common and don't always mean you have liver disease. However, levels more than 2-3 times the normal range often indicate a problem. Very high levels - over 8 times normal - can signal severe liver damage from causes like hepatitis, medication reactions, or alcohol abuse. It's important to discuss any abnormal results with your doctor.
Liver function tests are blood tests used to assess the state of a person's liver. They measure the levels of enzymes, proteins, and substances that the liver produces to gauge its health and function.

Beyond Just Liver Disease

Interestingly, liver tests can reveal health issues beyond just the liver. Abnormal results have been linked to increased risks of heart disease, diabetes, and even overall mortality in some studies. This is likely because the liver plays such a central role in metabolism and detoxification throughout the body.

FAQs

How often should I get liver tests?

Most healthy adults should get them every 1-2 years as part of routine checkups.

Can medications affect liver test results?

Yes, many common drugs can alter liver tests, so tell your doctor about all medications.

Do I need to fast before liver tests?

Usually a 8-12 hour fast is recommended for most accurate results.

The Bottom Line

Regular liver tests are a valuable tool for monitoring your overall health and catching problems early.
Wondering if you're due for liver tests? Ask Doctronic about scheduling appropriate screenings based on your individual health profile and risk factors.
Additional References
  1. Kwo PY, Cohen SM, Lim JK. ACG Clinical Guideline: Evaluation of Abnormal Liver Chemistries. Am J Gastroenterol 2017; 112:18.
  2. Newsome PN, Cramb R, Davison SM, et al. Guidelines on the management of abnormal liver blood tests. Gut 2018; 67:6.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic.