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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
306 U/L very high
0 from your result
elevatedvery high
1normal 5 to 41500
what this means

306 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 265 U/L over the normal ceiling of 41. That reads very high.

306 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) 306 U/L: Is That High?

Yes. 306 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 306 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
306 ÷ 38 =8.1AST 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) 306 U/L Low, Normal, or High?

Aspartate Aminotransferase (AST) 306 U/L might be considered higher than typical reference ranges often seen in health assessments. While individual results can vary based on numerous factors, a reading like this suggests that the level of this particular enzyme in your system is elevated.

Understanding the context of such a result is key to interpreting its potential implications for your well-being. This information can be a valuable starting point for deeper conversations about your health journey. What could this specific number be indicating about your body's current state?

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 306 U/L indicates a critical elevation, signalling acute and significant cellular damage, most frequently to the liver. This value, over six times the upper limit of normal, strongly suggests an active, rapid destruction of liver cells, which could be due to acute viral hepatitis, drug-induced liver injury – including from common medications or supplements – or even severe alcohol-related damage.

Less commonly, such a pronounced increase might point to extensive muscle trauma or conditions like rhabdomyolysis, though other markers would typically accompany this. Because AST is not exclusively liver-specific, further immediate investigation is crucial to identify the source.

This typically involves additional blood tests such as Alanine Aminotransferase (ALT), bilirubin, alkaline phosphatase, and a creatine kinase level to differentiate liver from muscle damage. Imaging studies like an abdominal ultrasound are often ordered to assess liver structure and the biliary system.

For patients, understanding that an AST of 306 U/L is an alarm bell demanding urgent medical attention is vital; however, prompt diagnosis and treatment often lead to recovery, making immediate follow-up the most crucial next step in navigating this concerning result.

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 306 against a general adult target. What 306 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.

Hidden Risk of Aspartate Aminotransferase (AST) 306 U/L

An Aspartate Aminotransferase (AST) 306 U/L result often signals that cells containing this enzyme may have been affected, leading to its release into the bloodstream. This elevation, sometimes described as an elevated AST level, doesn't diagnose a specific problem on its own but highlights an area that warrants further exploration.

It’s important to remember that many different scenarios can contribute to an increase in AST, from vigorous physical activity to various health conditions. Understanding the potential influences behind an elevated Aspartate Aminotransferase (AST) 306 U/L can empower individuals to engage more deeply with their healthcare providers about their specific situation.

This marker is a part of a larger picture of your cellular health and overall wellness, and considering its implications is a proactive step toward maintaining your health. Your body provides signals, and an elevated enzyme level is one such signal.

Exploring what could be contributing to such a level is not about fear but about informed understanding and potential action to support your health. The journey to understanding your Aspartate Aminotransferase (AST) 306 U/L is a personal one, guided by professional insights.

Elevated AST levels can be influenced by various factors that might not always be immediately apparent. Recognizing these influences is an important part of a comprehensive health review.

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 →

An AST level of 306 U/L significantly exceeds the normal range, indicating substantial hepatocellular injury. This very high elevation suggests acute damage to liver cells, which, if unaddressed, can progress to impaired liver function.

The liver plays a critical role in detoxification, metabolism, and synthesis of essential proteins; severe injury can compromise these functions, potentially leading to hepatic encephalopathy, coagulopathy (difficulty clotting blood), or even acute liver failure in severe, rapid-onset cases.

The magnitude of elevation points towards an aggressive process that requires immediate investigation to prevent long-term fibrotic changes or chronic liver disease development.

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.
  • Intense physical exertion can temporarily raise AST levels.
  • Certain cellular activities and conditions might contribute to higher readings.

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 306 U/L Mean?

Aspartate Aminotransferase (AST) 306 U/L refers to the measured amount of an enzyme called Aspartate Aminotransferase within your system. Enzymes are crucial proteins that help facilitate essential chemical reactions throughout the body, acting as biological catalysts.

AST is found in many different tissues, including the liver, heart, muscles, kidneys, and brain. Because it is present in so many places, an elevated Aspartate Aminotransferase (AST) 306 U/L doesn't point to a single specific issue but rather indicates that some cells containing this enzyme may have released it into the bloodstream in larger quantities than usual.

This release typically happens when cells are affected or undergoing repair. When you see an Aspartate Aminotransferase (AST) 306 U/L reading, it's a signal that warrants a broader look at your health.

It serves as an indicator that further discussion with a healthcare professional could provide valuable insights into what might be influencing this specific enzyme activity. This marker, when considered alongside other health information, helps in building a more complete picture of your body’s current state.

The meaning of an Aspartate Aminotransferase (AST) 306 U/L is highly dependent on individual circumstances, including your medical history, any symptoms you may be experiencing, and the results of other complementary health assessments.

It's a piece of the puzzle, inviting a thoughtful and informed exploration of your cellular well-being. Understanding the broad distribution of AST in the body helps to explain why its elevation, such as an Aspartate Aminotransferase (AST) 306 U/L, can be associated with diverse factors affecting various organ systems.

It encourages a holistic view rather than focusing on a single cause. Remember, this specific number is a snapshot, a moment in time that offers a glimpse into your body's dynamic internal environment, inspiring curiosity about what lies beneath the surface.

It is a prompt for further inquiry and discussion about the many potential influences on enzyme levels and overall health.

An AST value in the range of 306 U/L, often exceeding alanine aminotransferase (ALT) in certain scenarios, points towards specific etiologies rather than general liver stress. A common cause for such an elevation is acute viral hepatitis, particularly Hepatitis A or E, or a severe flare of Hepatitis B or C.

Ischemic hepatitis, or 'shock liver,' due to a sudden drop in blood flow or oxygen to the liver (e.g., from cardiac arrest or severe sepsis), is also a strong possibility given the magnitude.

Certain drug-induced liver injuries, especially from acetaminophen overdose or idiosyncratic reactions to prescription medications like statins or antibiotics, can also manifest at this level.

Your AST 306 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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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.

Lifestyle Changes for Aspartate Aminotransferase (AST) 306 U/L

While specific medical advice cannot be given, many lifestyle choices can broadly support cellular health and, indirectly, influence various enzyme levels, including Aspartate Aminotransferase (AST) 306 U/L. Engaging in regular, moderate physical activity is a cornerstone of a healthy lifestyle.

However, it is also important to recognize that very strenuous or intense exercise can sometimes temporarily increase AST levels, so finding a balance that supports your body without overexertion is key.

Prioritizing adequate rest and sleep is another vital component for cellular repair and overall well-being. During sleep, your body undertakes crucial restorative processes that contribute to maintaining healthy enzyme balances.

Managing stress effectively also plays a significant role in supporting overall health. Chronic stress can impact various bodily systems, and finding healthy coping mechanisms, such as mindfulness, meditation, or spending time in nature, can be beneficial.

Avoiding harmful substances, like excessive alcohol consumption or recreational drug use, is fundamental for supporting the health of organs where AST is abundant. These substances can significantly impact cellular integrity and function.

Staying well-hydrated throughout the day is another simple yet powerful practice. Water is essential for countless bodily functions, including nutrient transport and waste elimination, which all contribute to a healthy internal environment.

Think of these lifestyle adjustments not as quick fixes for an Aspartate Aminotransferase (AST) 306 U/L reading, but as ongoing investments in your overall vitality. Each positive habit contributes to a resilient body that is better equipped to maintain optimal cellular function and enzyme levels.

The cumulative effect of these choices creates a foundation for enduring wellness, helping your body to perform its best and promoting a healthy balance within your systems, including how enzymes like Aspartate Aminotransferase are managed and expressed. These are choices that empower you on your health journey.

Immediate medical evaluation is paramount for an AST of 306 U/L. Schedule an urgent appointment with your primary care physician or an emergency department to assess the severity and underlying cause.

Further laboratory testing, including a complete blood count, viral hepatitis panel (HAV, HBV, HCV), ALT, alkaline phosphatase, bilirubin, and INR, is essential for diagnosis. Lifestyle changes should focus on abstaining from alcohol completely and discontinuing any potentially hepatotoxic over-the-counter medications or supplements.

Depending on the suspected cause, referral to a gastroenterologist or hepatologist for specialized management and potential antiviral or supportive therapies will be necessary.

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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