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Aspartate Transferase Testing (AST)

The Aspartate Transferase test is also known as a Aspartate Aminotransferase, Aminotransferase test.

All you need to know about testing Aspartate Transferase levels with a laboratory test

  • What is the Aspartate Transferase test for?
  • What if Aspartate Transferase results are high?
  • What if Aspartate Transferase results are low?
  • What should I do after taking the Aspartate Transferase test?
  • How accurate is the Aspartate Transferase test?
  • Can I take the Aspartate Transferase test at home?
  • What should I do if my AST test results are low or normal?
  • What should I do if my AST test results are positive?
  • How do I interpret the results of my AST test?
  • How do I use the AST test?
  • How does the AST test work?
  • What are some symptoms which make the Aspartate Transferase test necessary?
  • What conditions can the AST test help to diagnose?
  • What is the Aspartate Transferase test?

Aspartate Transferase Testing UK Statistics 2026

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12.3% of people tested have Aspartate Transferase levels which are too high.

29.0

Normal
0 - 45

High
45 +

The average Aspartate Transferase result is 29.0 U/L
Note what is normal for you may differ for your age and sex.

Are you in the 87.7% with normal results?

What Is The Aspartate Transferase Test For?

AST is an enzyme found mostly in the heart and liver and to a lesser extent in skeletal muscle. When heart, liver or muscle cells are injured, they release AST into the bloodstream. Most commonly, this test is done to assess damage to liver but be aware that muscle cell damage can also cause high AST levels

Conditions linked to Aspartate Transferase

Liver disease

Liver disease

Liver disease encompasses a range of conditions that impair liver function, most commonly caused by alcohol, viral hepatitis or the accumulation of fat in liver cells.

How To Test Aspartate Transferase

By buying a laboratory test kit with professional nurse or clinic collection, you can accurately measure Aspartate Transferase for total reassurance.

Professional analysis in an accredited laboratory ensures rapid result delivery.

Tests which include a Aspartate Transferase test:

What if Aspartate Transferase Results Are High?

Moderately high AST levels (often less than 4 times the upper limit of normal, ULN) can be seen with slowly developing liver disease, chronic hepatitis, alcohol misuse, cholestasis, and damage affecting the heart, kidneys, or skeletal muscle.

With chronic hepatitis, AST often varies between normal and slightly increased, and repeated testing over time is sometimes used to look for patterns of change.

When a high AST result is newly identified, it is commonly reviewed further to clarify the cause. When high AST is already known, AST results are sometimes used for monitoring, and increases compared with earlier levels are often treated as a finding that merits review.

What if Aspartate Transferase Results Are Low?

A low AST level does not rule out liver damage. Other liver proteins and enzymes may still show liver injury even when AST is normal or low, so AST is usually interpreted alongside other liver function test results.

A low AST level is often not linked to any specific problem when other results in the liver function test panel are within the reference range.

Who Should Take This Test?

Measure your Aspartate Transferase levels and with a nurse or clinic test kit

You get the convenient testing with the reassurance of professional clinical analysis. Your results are delivered quickly & securely online.

This Test is advised if you:

  • want the convenience of home testing without waiting for a GP appointment;
  • need a high quality, clinically accredited test done in a professional clinical laboratory.

What should I do after taking the Aspartate Transferase test?

After taking the Aspartate Transferase test and sending your blood sample for analysis, you'll receive your results online. If your test indicates high AST levels, it's important you consult a healthcare provider who can further investigate and provide advice.

How accurate is the Aspartate Transferase test?

The Aspartate Transferase test is highly accurate when carried out by a UKAS accredited laboratory, as the methods used to analyse your blood sample are sophisticated and reliable. However, no single test can provide a complete picture of your health, and any results should be interpreted in conjunction with other health information.

Can I take the Aspartate Transferase test at home?

Yes, you can take the Aspartate Transferase test at home using the Vitall self-collection kit. The kit includes all the necessary instructions and tools to collect a blood sample and post it back to the lab for analysis. Results are typically available online within 24 hours.

What should I do if my AST test results are low or normal?

If your AST test results are within the normal range, this generally means your liver is not damaged. However, if you're still experiencing symptoms or you have health concerns, you should discuss these with your healthcare provider.

What should I do if my AST test results are positive?

If your AST results are high, indicating potential liver damage or disease, it's important you consult a healthcare provider right away. They can provide advice, interpret your results within the context of your other health information, and, if necessary, prescribe treatment.

How do I interpret the results of my AST test?

The results of your Aspartate Transferase test will be clearly presented in your Vitall online account, alongside information to help you understand them. Typically, high AST levels suggest liver damage or disease.

How do I use the AST test?

Using the self-collection Aspartate Transferase test kit from Vitall, you simply perform a finger-prick to collect a small sample of blood, following the detailed step-by-step instructions provided. The sample is then returned by post for analysis.

How does the AST test work?

The Aspartate Transferase test is a simple blood test. After a small blood sample is collected, often by a finger-prick, it is sent to an accredited lab for analysis by medical professionals, who will measure the levels of AST in your bloodstream.

What are some symptoms which make the Aspartate Transferase test necessary?

If you're experiencing symptoms such as jaundice (yellowing of the skin and eyes), dark urine, abdominal pain, or unexplained fatigue, an Aspartate Transferase test may help determine if these symptoms are due to liver disease or damage.

What conditions can the AST test help to diagnose?

The Aspartate Transferase test can be used to diagnose a range of liver conditions, such as hepatitis, cirrhosis, and other liver diseases. It can also be used to monitor the effectiveness of treatment for these diseases.

What is the Aspartate Transferase test?

The Aspartate Transferase (AST) test is a blood test that can help identify damage or disease in your liver. AST is an enzyme found in various tissues, but is most abundant in your liver. When your liver is damaged or diseased, it releases more AST into your bloodstream, which can be detected through this test.
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