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Tell it who you are and what else was on your test. Every line below, including the article, rewrites itself as you go.

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

357 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 316 U/L over the normal ceiling of 41. That reads very high.

357 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) 357 U/L: Is That High?

Yes. 357 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 357 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
357 ÷ 38 =9.4AST 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) 357 U/L Low, Normal, or High?

Aspartate Aminotransferase (AST) 357 U/L might be considered an elevated level. Generally, typical ranges for AST are much lower, varying slightly depending on the laboratory. A value like 357 U/L suggests an AST level that is higher than what is usually observed.

Understanding what this specific Aspartate Aminotransferase (AST) 357 U/L result could mean for your well-being is a key step towards gaining clarity.

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.

Read mine against my ALT →

An Aspartate Aminotransferase (AST) level of 357 U/L is a critical finding, signaling significant acute cellular injury, most often in the liver. This value, nearly eight times the upper limit of the normal range, indicates substantial damage that requires immediate medical evaluation.

Such a pronounced elevation strongly suggests conditions like acute viral hepatitis, which could be from infections like Hepatitis A, B, or C, or severe drug-induced liver injury, perhaps from medications like acetaminophen or certain antibiotics.

It's a stark indicator that liver cells are dying or severely compromised, releasing enzymes into the bloodstream. Given this elevated AST, further urgent diagnostic steps are essential. Physicians will typically order a comprehensive liver panel, including Alanine Aminotransferase (ALT), alkaline phosphatase, bilirubin, and INR, to assess the full extent of liver function and identify patterns indicative of specific diseases.

Additionally, tests for hepatitis viruses, autoimmune markers, and sometimes imaging like an abdominal ultrasound, will be conducted to pinpoint the exact cause. While this level is very concerning, it's important to remember that acute liver damage, especially if identified and treated quickly, can often be managed or reversed, preventing long-term complications. The speed of diagnosis and intervention is paramount to a favorable outcome.

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 357 against a general adult target. What 357 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) 357 U/L

Understanding an Aspartate Aminotransferase (AST) 357 U/L result involves looking at what AST is and where it comes from. AST is an enzyme, a type of protein, found inside the cells of various body tissues, notably the liver, heart, skeletal muscles, and kidneys.

When cells in these organs are damaged, they can release AST into the bloodstream. Therefore, an elevated Aspartate Aminotransferase (AST) level can sometimes signal that some cells in these tissues have experienced injury or inflammation.

A reading of Aspartate Aminotransferase (AST) 357 U/L indicates a notable increase, which could point to an underlying process affecting these organs. It's important to remember that this number is one piece of a larger health picture, and it doesn't on its own tell the full story.

Medical professionals often look at this result in conjunction with other information to understand its significance. Elevated Aspartate Aminotransferase (AST) levels can sometimes be a sign of various conditions affecting different parts of the body, prompting a closer look to understand the source of the elevation.

The level of Aspartate Aminotransferase (AST) at 357 U/L, while elevated, requires careful consideration within your unique health profile. The American Medical Association emphasizes that such findings warrant further discussion with a healthcare provider.

Looking into factors that affect liver health, like certain habits, can be a useful starting point for anyone reflecting on an Aspartate Aminotransferase (AST) 357 U/L result.

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 very high AST level of 357 U/L signifies significant hepatocellular injury, dramatically increasing the risk of acute liver failure. This magnitude of elevation suggests widespread damage to liver cells, potentially leading to impaired detoxification and synthesis functions.

The liver's ability to produce albumin and clotting factors can be compromised, increasing the risk of bleeding complications and fluid imbalances like ascites and edema. Furthermore, severe inflammation associated with such high AST can trigger a fibrotic response, and if the underlying cause is not addressed, this could accelerate the progression towards cirrhosis and portal hypertension over time, even if the initial insult is resolved.

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.

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 357 U/L Mean?

When your Aspartate Aminotransferase (AST) is 357 U/L, it prompts a deeper exploration into what such an elevated enzyme level signifies for your body. As an enzyme primarily found in the liver, heart, and muscles, its presence in higher amounts in the bloodstream can indicate that cells in these organs may have been affected.

The liver, a vital organ, performs hundreds of functions, including detoxifying harmful substances, processing nutrients, and producing proteins. When liver cells are damaged, they release enzymes like AST, leading to an elevated Aspartate Aminotransferase (AST) 357 U/L reading.

However, it's crucial to understand that an Aspartate Aminotransferase (AST) 357 U/L result is not a diagnosis on its own. It's a signal, a marker that suggests something might be happening in the body that requires attention.

For example, if the liver is the primary source of the elevated AST, it could relate to inflammation or injury within the liver. Yet, because AST is also present in other tissues, heart or muscle conditions might also contribute to an elevated Aspartate Aminotransferase (AST) 357 U/L.

Medical experts typically consider this number alongside other liver function tests, physical symptoms, and a person's overall health history to get a comprehensive understanding. The National Institutes of Health (NIH) often stresses the importance of a holistic view when interpreting such findings.

This comprehensive approach helps to pinpoint the specific area or condition that might be causing the Aspartate Aminotransferase (AST) 357 U/L level to be elevated. Without this broader context, drawing conclusions from a single Aspartate Aminotransferase (AST) 357 U/L result can be misleading.

Therefore, the meaning of Aspartate Aminotransferase (AST) 357 U/L is really about a conversation with a healthcare provider who can piece together all the information.

An AST value around 357 U/L, significantly above the normal range, most plausibly stems from acute viral hepatitis (like Hepatitis A or B), acetaminophen overdose, or a severe autoimmune hepatitis flare.

Ingestion of certain toxins or exposure to hepatotoxic medications, especially in high doses or combined with other risk factors, could also precipitate this level of enzyme release. Less commonly but still possible are acute ischemic hepatitis due to severe hypoperfusion or a rapid progression of non-alcoholic fatty liver disease (NAFLD) into non-alcoholic steatohepatitis (NASH) with superimposed injury.

Your AST 357 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 357 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) 357 U/L

Reflecting on an Aspartate Aminotransferase (AST) 357 U/L reading often naturally leads to considering lifestyle adjustments that support overall well-being, particularly for the liver. While no single change can directly lower Aspartate Aminotransferase (AST) 357 U/L without understanding the underlying cause, certain habits are widely recognized for promoting health.

Engaging in regular physical activity, for instance, is beneficial for maintaining a healthy weight and can indirectly support liver function. The Centers for Disease Control and Prevention (CDC) consistently highlights the importance of exercise for general health.

Aiming for consistent sleep patterns also plays a crucial role in the body's repair and recovery processes, which can be supportive for organs like the liver. Managing stress effectively is another significant lifestyle factor; chronic stress can have widespread effects on the body, and finding healthy coping mechanisms like mindfulness or hobbies can be empowering.

Additionally, avoiding excessive consumption of alcohol is a well-known way to protect liver health, as the liver processes alcohol, and heavy drinking can lead to liver damage and elevated Aspartate Aminotransferase (AST) levels.

Similarly, steering clear of smoking and exposure to environmental toxins can lessen the burden on the liver. These broad lifestyle choices, while not specific treatments for an Aspartate Aminotransferase (AST) 357 U/L result, contribute to a healthier foundation.

A holistic approach to health, encompassing these areas, can be a proactive step. Thinking about how these elements fit into your daily routine can offer a path to better supporting your body's systems, even when faced with an Aspartate Aminotransferase (AST) 357 U/L finding.

It’s about building a robust foundation for health that can help the body maintain balance.

Immediate medical evaluation is paramount. You should go to an urgent care or emergency department for further assessment and blood work, including a complete liver panel, viral hepatitis serologies, and acetaminophen levels if relevant.

Cease all alcohol consumption and any over-the-counter medications or supplements not explicitly approved by a physician. You will likely need to see a hepatologist or gastroenterologist specializing in liver diseases for diagnostic workup, including potential imaging like an abdominal ultrasound or even a liver biopsy, to pinpoint the cause and guide treatment to prevent further liver damage.

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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What you actually get

A page like this one, written about you.

You have just spent a few minutes reading a page written for a number. Upload your whole test and you get the same thing written for your body: every marker read against every other, in the order they should be fixed, as something you read rather than a dashboard you have to decode.

  • Read in orderWhich number to deal with first, and which ones are only following it.
  • Written, not chartedThe same voice as this page, about your own blood, on your own page.
  • Every retest joins itThe line builds itself, so the next version shows what moved.

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