Everything else

Make it yours.

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
Every marker at once a PDF or a photo of the printout, read in seconds

add any marker from your test

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

288 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 247 U/L over the normal ceiling of 41. That reads very high.

288 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.

recheck in 12 weeks

Your BloodMarker report · Aspartate Aminotransferase (AST)

Aspartate Aminotransferase (AST) 288 U/L: Is That High?

Yes. 288 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

Have your results in hand?

Upload or photograph your blood test and see every marker explained in seconds. Free.

Upload my blood test

YOUR NUMBERS

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

Values in U/L. Your Aspartate Aminotransferase (AST) of 288 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
288 ÷ 38 =7.6AST 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.
Read my whole panel →

Every marker on your test, read against your age and sex. Free.

Is Aspartate Aminotransferase (AST) 288 U/L Low, Normal, or High?

Aspartate Aminotransferase (AST) 288 U/L might be considered elevated compared to typical reference ranges. This level suggests your body could be sending a signal worth exploring further. Understanding what this marker represents is a step toward greater insight into your overall well-being.

This information offers a starting point for a deeper conversation about your health journey. What could this information mean for your well-being?

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 288 U/L is a significantly elevated finding, signaling acute cellular damage, most commonly involving the liver or skeletal muscles. This reading is more than six times the upper limit of the normal range of 40 U/L, placing it firmly in the "very high" clinical category, indicative of a pressing medical concern rather than a minor fluctuation.

At this magnitude, common culprits include acute hepatitis – whether viral, toxic, or autoimmune – which causes widespread liver cell inflammation and destruction. Another significant possibility is severe muscle injury, such as rhabdomyolysis or extensive trauma, given AST's abundance in muscle tissue.

Immediate follow-up typically involves further diagnostic tests to pinpoint the source of injury, including a complete liver panel (e.g., ALT, bilirubin), hepatitis serologies, and potentially imaging studies like an abdominal ultrasound.

A thorough review of medications and recent exposures is also crucial. Patients should understand that while a single high AST level of 288 U/L is alarming, the trend over time and its ratio to other liver enzymes are often more telling for diagnosis.

Even after the initial cause is addressed, it can take several weeks for AST levels to fully normalize, requiring ongoing monitoring rather than an immediate return to baseline.

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 288 against a general adult target. What 288 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) 288 U/L

An Aspartate Aminotransferase (AST) 288 U/L reading can sometimes point to situations within the body that deserve attention. AST is an enzyme found in various tissues, and when cells are stressed or damaged, this enzyme can be released into the bloodstream.

While a single elevated reading like Aspartate Aminotransferase (AST) 288 U/L doesn't provide a complete picture on its own, it can encourage a closer look at certain body systems. For example, it might prompt an exploration of liver health or even muscle integrity, as these are primary locations where AST is abundant.

The human body is a complex network, and changes in markers like AST can be an early indicator that certain systems are working harder than usual or experiencing some form of mild distress.

It is a sign that the body's internal environment might be reacting to various influences. A healthcare professional can help interpret what Aspartate Aminotransferase (AST) 288 U/L could signify in your unique health context, considering all other relevant factors.

The American Association for the Study of Liver Diseases emphasizes the importance of understanding the full context of such markers. This type of reading encourages a dialogue with your doctor to explore potential causes and ensure your ongoing health.

It is not an alarm, but rather a nudge to investigate further and understand the story your body is telling. Understanding these potential connections empowers you to engage more actively in your health management.

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 one reaching 288 U/L, points towards substantial hepatocellular injury. This degree of elevation suggests ongoing damage to liver cells, which, if unaddressed, can impair the liver's ability to perform critical functions like detoxification, protein synthesis, and bile production.

The persistent inflammation and cell death can lead to fibrotic changes over time, potentially progressing to more severe conditions like cirrhosis, where scar tissue replaces healthy liver tissue, severely compromising organ function and increasing the risk of liver failure and hepatocellular carcinoma.

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.

Here are some general areas that might be explored with an elevated AST:

  • Liver function and health
  • Muscle tissue integrity
  • Heart muscle well-being

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 288 U/L Mean?

When we talk about Aspartate Aminotransferase (AST) 288 U/L, we are referring to an enzyme that plays a crucial role in metabolism, which is how your body transforms food into energy.

Enzymes are like tiny workers in your cells, speeding up vital chemical reactions. AST is particularly concentrated in certain cells, including those in the liver, heart, muscles, kidneys, and brain.

Typically, these enzymes stay mostly inside the cells where they do their work. However, if cells are damaged or injured, they can release their contents, including AST, into the bloodstream.

This is why an elevated Aspartate Aminotransferase (AST) 288 U/L can be a signal that some cells in your body might be experiencing stress or damage. It's like a small alarm bell ringing, suggesting that a closer look at the health of these tissues could be beneficial.

For instance, if the liver cells are under strain, more AST might spill out. Similarly, muscle injury or strenuous activity could also lead to an increase in circulating AST. An Aspartate Aminotransferase (AST) 288 U/L level is a piece of information, a clue in the larger puzzle of your health.

It doesn't pinpoint an exact problem on its own, but it certainly prompts further investigation. The National Institutes of Health often highlights the diagnostic value of enzyme markers like AST when viewed within a comprehensive clinical picture.

Thinking about Aspartate Aminotransferase (AST) 288 U/L in this way helps us understand that it's a reflection of cellular well-being, inviting us to consider what might be influencing the health of the cells where this enzyme resides.

It encourages a proactive approach to understanding and maintaining your body's intricate balance and function.

An AST value around 288 U/L in adults most commonly indicates significant liver inflammation, often stemming from viral hepatitis (like Hepatitis B or C) or the spectrum of fatty liver disease, particularly non-alcoholic steatohepatitis (NASH) which involves inflammation and damage.

Acute drug-induced liver injury, from medications like acetaminophen overdose or certain antibiotics and statins, is also a strong possibility at this level. Less common, but still plausible, would be acute alcoholic hepatitis in individuals with heavy alcohol consumption, or a significant ischemic insult to the liver.

Your AST 288 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.
Upload your blood test, get your real plan back to normal →
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) 288 U/L

Embracing a lifestyle that supports overall wellness can have a positive ripple effect throughout your body, potentially influencing various markers, including Aspartate Aminotransferase (AST) 288 U/L. While specific medical conditions require targeted approaches, general healthy habits lay a strong foundation.

For example, staying adequately hydrated is fundamental for all bodily processes, helping cells function efficiently and supporting the body's natural detoxification pathways. Engaging in regular, moderate physical activity can also contribute to overall cellular health and muscle strength.

It’s important to find an activity level that feels good and is sustainable, without overexertion, which could temporarily influence enzyme levels. Managing stress effectively is another powerful lifestyle adjustment. Chronic stress can impact various physiological systems, so incorporating relaxation techniques such as mindfulness, meditation, or spending time in nature can be incredibly beneficial.

Prioritizing consistent, quality sleep allows your body to repair and rejuvenate itself, which is vital for cellular integrity. When your body is well-rested, its systems can operate more optimally. These lifestyle choices are not direct treatments for Aspartate Aminotransferase (AST) 288 U/L, but rather supportive measures for holistic health.

They empower you to take an active role in fostering an environment where your body can thrive. By focusing on these pillars of wellness, you're not just addressing a single number, but nurturing your entire system towards greater vitality and resilience.

These steps are about enhancing your overall well-being, which can, in turn, contribute to a healthier internal landscape and potentially influence the balance of enzymes like Aspartate Aminotransferase (AST) 288 U/L over time.

With an AST of 288 U/L, immediate medical attention is paramount. Schedule an urgent appointment with your primary care physician or a gastroenterologist/hepatologist. They will likely order a more comprehensive liver panel including ALT, ALP, GGT, bilirubin, and albumin, along with viral hepatitis serologies and an abdominal ultrasound.

You should meticulously review all current medications and supplements with your doctor, and if alcohol is consumed, abstinence is strongly advised. Tracking your diet for high-fat, high-sugar foods and considering a trial of a Mediterranean-style diet is a high-yield lifestyle change.

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.

Before you go

Want a nudge when it is time to check aspartate aminotransferase (ast) again?

This page suggests retesting in 3 months. We will email you then, once, with what to compare against. Nothing else, ever.

One email, in 3 months. Unsubscribe in one click. We never store your results, only the marker name. Privacy

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.

Sources

Disclaimer: This content is for informational purposes only and is not medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. BloodMarker does not establish a doctor-patient relationship. Terms & Conditions
Upload my test