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HDL42
Triglycerides180
ApoB110
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Alanine Aminotransferase (ALT)mg/dL
Gamma-Glutamyl Transferase (GGT)mg/dL
Alkaline Phosphatase (ALP)mg/dL
239 U/L very high
0 from your result
elevatedvery high
1normal 5 to 41500
what this means

239 is very high for AST, enough that the number itself is the problem.

this is the average reading · make it yours below

reading as

This level is usually treated as urgent. A result this far outside the range is normally checked by a doctor promptly, not at your next routine appointment.

You are 198 U/L over the normal ceiling of 41. That reads very high.

239 is very high. That is above the normal range for AST. How much it matters depends on the markers it travels with, which is what the sections below are rewritten against.

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Your BloodMarker report · Aspartate Aminotransferase (AST)

Aspartate Aminotransferase (AST) 239 U/L: Is That High?

Yes. 239 U/L is well outside the normal range for AST.

But a number alone is only half the story. Your Alanine Aminotransferase (ALT), Gamma-Glutamyl Transferase (GGT) and your risk factors decide how much it means. Tell it who you are.

Reviewed against ALF, NIH, Mayo Clinic, AGA guidelines · Last reviewed March 22, 2026

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YOUR NUMBERS

Normal: <40
Raised: 40-79
High: 80+

Values in U/L. Your Aspartate Aminotransferase (AST) of 239 is marked.

What they say together.

Aspartate Aminotransferase (AST) is read as part of a set. Add the ones printed next to it on your test and the figures below work themselves out, with the ranges this page uses for each.

U/LHIGH
U/LexampleNORMAL
U/LexampleRAISED
239 ÷ 38 =6.3AST to ALT ratio, the De Ritis ratio. Under 1 is the usual fatty-liver pattern; above 2 points at alcohol.
62 and 381.6GGT against ALT. GGT rising faster than ALT is the pattern that separates alcohol and bile flow from fat in the liver.
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Is Aspartate Aminotransferase (AST) 239 U/L Low, Normal, or High?

Aspartate Aminotransferase (AST) 239 U/L might be considered higher than what is typically seen in healthy individuals. Levels of Aspartate Aminotransferase (AST) vary, but this specific reading generally falls above the commonly expected range.

It's important to understand that an individual reading is just one piece of a larger picture about your well-being. What could this particular Aspartate Aminotransferase (AST) 239 U/L reading tell us about your body and overall health?

what this page cannot tell you

The AST/ALT ratio above 2:1 suggests alcoholic liver disease. Near 1:1 points to non-alcoholic fatty liver. Which is yours?

This page has not been given your ALT, so that half of the picture is missing here. It is describing the average reader with Aspartate Aminotransferase (AST), not you.

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An Aspartate Aminotransferase (AST) level of 239 U/L, drastically exceeding the upper normal limit of 40 U/L by nearly 500%, represents a strong clinical signal of significant, acute cellular damage, primarily concerning the liver or skeletal muscle.

This very high elevation often points to conditions requiring urgent medical attention. Common causes at this magnitude include acute viral hepatitis (such as A, B, or C), severe drug-induced liver injury from medications or herbal supplements, acute alcoholic hepatitis, or extensive muscle breakdown like rhabdomyolysis.

Identifying the precise origin of such an elevated AST is critical, and typically involves immediate follow-up tests. These often include a full liver function panel (checking ALT, alkaline phosphatase, bilirubin), coagulation studies (PT/INR), and specific viral hepatitis serologies.

If muscle injury is suspected, a creatine kinase (CK) test will be performed. Imaging, such as an abdominal ultrasound, may also be used to evaluate liver structure. While an AST of 239 U/L is certainly alarming and demands prompt investigation, it’s important to understand that this elevation alone does not predetermine a long-term prognosis; swift diagnosis and appropriate treatment of the underlying cause frequently lead to recovery and normalization of enzyme levels.

The liver and Aspartate Aminotransferase (AST) LIVER Produces Aspartate Aminotransferase (AST) Blood supply Bile output Elevated Aspartate Aminotransferase (AST) may indicate liver cell damage or stress
for your numbersThe section below is written for 239 against a general adult target. What 239 means for you depends on the rest of your lipids and your other risk factors. Your report starts from your whole picture, not one line.
for your numbersThe risk below is the average one for this AST. Whether it applies to you depends on the rest of your panel, which the article has not been given. Add them and this stops describing strangers.

Hidden Risk of Aspartate Aminotransferase (AST) 239 U/L

An Aspartate Aminotransferase (AST) 239 U/L level can sometimes be a signal that cells in certain parts of your body, often the liver or muscles, might have experienced some form of stress or mild damage.

The body has many complex systems, and when cells are under duress, they can release substances like AST into the bloodstream. This elevated Aspartate Aminotransferase (AST) 239 U/L reading encourages a closer look into your internal landscape.

It’s not a diagnosis in itself, but rather an indicator that prompts further discussion with your healthcare provider to explore potential contributing factors and ensure your well-being. Understanding these potential signs is a proactive step in managing your health journey and ensuring that any underlying issues are identified and addressed appropriately, leading to better overall health outcomes.

It's a key part of staying informed about your body's signals and working towards its optimal functioning. Several areas could be related to such an elevated Aspartate Aminotransferase (AST) reading, and a thoughtful exploration can provide valuable insights into your current health status and any adjustments that might benefit you.

Discovering the 'why' behind an Aspartate Aminotransferase (AST) 239 U/L level is a journey toward greater health awareness. This specific Aspartate Aminotransferase (AST) 239 U/L can be influenced by various factors.

Engaging with your healthcare team is essential for a comprehensive evaluation and personalized guidance to navigate this reading effectively. The causes for an elevated Aspartate Aminotransferase (AST) 239 U/L are diverse, highlighting the importance of a thorough medical review to pinpoint the specific reason in your individual case and ensure that you receive the most appropriate care.

This elevated Aspartate Aminotransferase (AST) 239 U/L can be a helpful guide in understanding your body better. Such an elevated Aspartate Aminotransferase (AST) 239 U/L reading is a significant point of discussion.

This Aspartate Aminotransferase (AST) 239 U/L level is a signal for careful review. Potential hidden risks or contributing factors for an elevated Aspartate Aminotransferase (AST) 239 U/L might include:

what this page cannot tell you

AST and ALP together distinguish between liver cell damage and cholestatic disease, which have completely different treatments.

This page has not been given your ALP, so it cannot tell you which of those you are. It is describing the average reader with Aspartate Aminotransferase (AST), not you.

Read mine against my ALP →

A significantly elevated Aspartate Aminotransferase (AST) level, such as 239 U/L, indicates substantial hepatocellular injury, putting you at increased risk for acute liver failure, especially if the underlying cause is severe or progressive.

This extreme elevation can overwhelm the liver's regenerative capacity, leading to impaired detoxification, protein synthesis, and bile production. The damage may extend to cause significant inflammation, potentially progressing to fibrosis or cirrhosis if the insult persists without intervention.

Furthermore, critically high AST can be associated with conditions like Wilson's disease or hemochromatosis, which have their own systemic complications if left unaddressed, impacting organs beyond the liver.

for your numbersThis section lists every reason AST moves, because on its own the number cannot say which is yours. The rest of your panel and a few risk factors would cross most of them off in a sentence.
  • Temporary cell stress from strenuous exercise
  • Certain daily habits affecting organ function

This part is about the number

Everything below explains what raises Aspartate Aminotransferase (AST). It cannot tell you which of them is yours.

Your test can. Every marker on it is read against every other one, which is where the answer actually lives.

PDF or a photo of the printout · read in seconds

What Does a Aspartate Aminotransferase (AST) Level of 239 U/L Mean?

Aspartate Aminotransferase, often simply called AST, is an enzyme. Enzymes are like tiny workers inside your cells, helping to speed up important chemical reactions that keep your body functioning. AST is found in many parts of the body, but it's especially abundant in liver cells, muscle cells (including those in your heart), kidney cells, and brain cells.

When these cells are healthy, most of the AST stays inside them. However, if cells are damaged or inflamed for any reason, they can release their contents, including AST, into your bloodstream.

This is why an elevated Aspartate Aminotransferase (AST) 239 U/L level can act as a signal that something might be causing stress to cells in one or more of these areas.

It's not a direct measure of disease, but rather an indicator of potential cell damage. For instance, a very high Aspartate Aminotransferase (AST) 239 U/L might strongly suggest liver cell damage, but it's crucial to consider it alongside other markers and your overall health picture.

A healthcare provider uses this information, along with other test results, your medical history, and a physical examination, to understand what might be happening. They will not solely rely on an Aspartate Aminotransferase (AST) 239 U/L value to make a diagnosis.

Think of it as a single clue in a larger mystery. An isolated Aspartate Aminotransferase (AST) 239 U/L reading tells us that cells might be under some strain, but it doesn't specify the location or the exact cause.

It prompts further investigation and a thoughtful conversation with your doctor to explore the significance of this particular Aspartate Aminotransferase (AST) 239 U/L in the context of your personal health journey.

The goal is always to piece together the full story to ensure your well-being and guide any necessary next steps. An Aspartate Aminotransferase (AST) 239 U/L serves as a valuable piece of diagnostic information, contributing to a holistic assessment of your health.

It is not an end in itself but a guidepost. Understanding Aspartate Aminotransferase (AST) 239 U/L involves considering the broader landscape of your body's health. The presence of Aspartate Aminotransferase (AST) 239 U/L points towards potential areas of focus for your health review.

An AST level around 239 U/L most strongly suggests acute viral hepatitis (like Hepatitis A, B, or E) or a drug-induced liver injury (DILI) from over-the-counter medications (e.g., acetaminophen overdose) or prescription drugs.

Ischemic hepatitis, often secondary to severe systemic illness or shock, is another significant possibility, where the liver doesn't receive enough oxygen. Less commonly, while other conditions can elevate AST, reaching this specific range points towards an acute and often significant event rather than chronic, milder conditions.

Your AST 239 means different things depending on your other markers

AST + ALT
The AST/ALT ratio above 2:1 suggests alcoholic liver disease. Near 1:1 points to non-alcoholic fatty liver. Which is yours?
AST + ALP
AST and ALP together distinguish between liver cell damage and cholestatic disease, which have completely different treatments.
AST + Creatine Kinase
If your CK is also high, your elevated AST might be from muscle damage, not liver damage at all.
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The part one number cannot show
Your AST of 239 means different things depending on its companion markers.
Your full panel shows which story is yours.
See what is driving yours →

Lifestyle Changes for Aspartate Aminotransferase (AST) 239 U/L

Beyond what you eat, various lifestyle choices play a significant role in your overall well-being, including the health of your liver and muscles, which in turn can influence enzyme levels like Aspartate Aminotransferase (AST).

Embracing a balanced and active lifestyle can support your body's ability to maintain healthy cell function. Regular physical activity, for example, is vital for muscle health and circulation. While very intense exercise can temporarily increase AST levels, consistent moderate activity generally contributes to better health outcomes.

Finding an exercise routine that suits your body and makes you feel good is key. Think about activities that reduce stress, such as yoga, walking in nature, or meditation. Chronic stress can have widespread effects on the body, and managing it effectively is beneficial for various bodily systems.

Ensuring adequate sleep is another cornerstone of good health. During sleep, your body repairs itself and performs many vital functions. Lack of sufficient, restorative sleep can put extra strain on your system.

Avoiding harmful substances, such as excessive alcohol consumption, is particularly important for liver health. The liver is the body's primary filter, processing everything you consume, and giving it a break from toxins can significantly support its function.

The American Heart Association (AHA) and other health organizations consistently highlight the importance of these lifestyle factors for cardiovascular health and overall vitality, which are interconnected with liver and muscle health.

Maintaining a healthy weight through a combination of diet and exercise also eases the burden on many organs. These adjustments are not specific treatments for an Aspartate Aminotransferase (AST) 239 U/L but are foundational practices for fostering a resilient and healthy body.

Such choices collectively create an environment where cells can thrive, potentially influencing how your Aspartate Aminotransferase (AST) levels behave over time. Engaging in these positive habits empowers you to take an active role in supporting your body's intricate balance.

This proactive approach to lifestyle supports overall health and potentially impacts an Aspartate Aminotransferase (AST) 239 U/L reading. Focusing on these non-dietary elements can be very empowering. A holistic view of health, including all these aspects, can contribute positively to your well-being and how your body processes and shows an Aspartate Aminotransferase (AST) 239 U/L level.

Your AST level requires immediate medical attention. Schedule an urgent appointment with your primary care physician or go to an urgent care facility today. Do not delay. They will likely order repeat liver function tests, including ALT, bilirubin, and alkaline phosphatase, along with viral hepatitis serologies and potentially an abdominal ultrasound to assess liver structure.

Avoid all alcohol and any potentially hepatotoxic medications, including high-dose acetaminophen, until cleared. Focus on maintaining hydration and a balanced diet; significant dietary changes are secondary to addressing the acute cause.

for your numbersThe portions below are generic because the page does not know your body. Add your height and weight above and the fibre targets resize to you at once, a small preview of what the full report does with every number.

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