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

148 is elevated for AST, far enough out to be worth acting on.

this is the average reading · make it yours below

reading as

This is outside the range. Worth acting on, and worth seeing next to your other numbers first: the same value means different things depending on what is around it.

You are 107 U/L over the normal ceiling of 41. That reads elevated.

148 is elevated. 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) 148 U/L: Is That High?

Borderline. 148 U/L is 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 148 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
148 ÷ 38 =3.9AST 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) 148 U/L Low, Normal, or High?

Aspartate Aminotransferase (AST) 148 U/L might be considered elevated when compared to typical reference ranges for adults. An enzyme level at this reading suggests it is higher than what is commonly seen in healthy individuals.

While discovering an elevated result can prompt questions, understanding what this number represents is the first step. It is important to know that individual circumstances always play a role in interpreting any lab result.

Let's explore what Aspartate Aminotransferase (AST) means for your well-being and what steps might be helpful to consider.

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 148 U/L signifies a notable elevation well beyond the normal range of 5-40 U/L, indicating a definite concern for cellular damage, most commonly originating from the liver.

This value, nearly four times the upper limit of normal, often prompts clinical investigation, as it suggests the potential release of enzymes from damaged cells. Common underlying causes at this specific level frequently include non-alcoholic fatty liver disease (NAFLD), which is increasingly prevalent, or the impact of certain medications, supplements, or even moderate alcohol consumption.

While such an elevation warrants attention, it’s important for patients to understand that this level doesn’t automatically denote advanced or irreversible liver damage. Instead, it serves as a critical signal to explore potential triggers and intervene early.

Typical follow-up steps involve a comprehensive liver panel, including Alanine Aminotransferase (ALT) for a more complete picture, hepatitis virus screening, and often an abdominal ultrasound to assess liver structure. A detail often overlooked is that even significant lifestyle changes, like weight loss and dietary modifications, can lead to substantial improvement in AST levels at this range, highlighting the reversible nature of many underlying conditions when addressed proactively.

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 148 against a general adult target. What 148 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) 148 U/L

An elevated Aspartate Aminotransferase (AST) 148 U/L can sometimes be a sign that something is causing cells in certain parts of the body to release this enzyme. AST is an enzyme found in various tissues, including the liver, heart, skeletal muscles, and kidneys.

When these cells are damaged, AST can leak into the bloodstream, leading to higher levels detected in a blood test. This doesn't automatically mean there's a serious problem, but it does indicate a need for further exploration to understand the root cause of the elevated Aspartate Aminotransferase (AST).

Identifying the specific source of the elevation is crucial for an accurate picture of your health. A healthcare provider will often look at other related markers, like Alanine Aminotransferase (ALT), to help pinpoint the origin of the enzyme elevation and guide further understanding of your overall health.

Elevated AST levels can be influenced by many factors, from temporary muscle strain to more significant organ health concerns. A careful and thorough evaluation helps to distinguish between these possibilities, ensuring that any underlying issues are recognized and addressed properly.

Understanding the full picture beyond just the Aspartate Aminotransferase (AST) 148 U/L result is key to informed health management. Finding the reason for an elevated Aspartate Aminotransferase (AST) is an important step in maintaining your well-being.

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 at 148 U/L signifies significant liver cell injury, increasing the risk for complications like acute liver failure or decompensated cirrhosis, particularly if the underlying cause is severe or persistent.

This degree of elevation suggests ongoing hepatocellular damage where liver cells are actively rupturing and releasing their contents, including AST, into the bloodstream. Over time, this can lead to impaired liver function affecting protein synthesis, detoxification, and bile production.

Without addressing the cause, the liver's regenerative capacity may be overwhelmed, potentially progressing to more serious conditions such as portal hypertension or hepatic encephalopathy, impacting overall health and quality of life.

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 148 U/L Mean?

Aspartate Aminotransferase (AST) is an enzyme, a type of protein that helps speed up chemical reactions in cells. This particular enzyme is vital for metabolism, the process by which your body converts food into energy.

AST is found in many different tissues throughout your body, with significant amounts in the liver, heart, and muscles. When cells in these organs are injured or damaged, the Aspartate Aminotransferase (AST) within them can spill out into your bloodstream.

This is why a blood test might show an elevated Aspartate Aminotransferase (AST) 148 U/L. An elevated AST level, like 148 U/L, suggests that there might be some level of cellular damage occurring in one or more of these areas.

It acts like an alarm signal, letting healthcare providers know that something might be amiss. However, an elevated Aspartate Aminotransferase (AST) on its own doesn't tell the whole story or pinpoint the exact problem.

Many different factors, from strenuous exercise to certain health conditions, can lead to a rise in Aspartate Aminotransferase (AST) levels. This is why healthcare professionals typically consider the Aspartate Aminotransferase (AST) 148 U/L result in the context of your overall health, other lab tests, and your medical history.

They might also look at another liver enzyme called Alanine Aminotransferase (ALT) to get a clearer picture, as the ratio of AST to ALT can sometimes offer clues. For instance, if ALT is also elevated, it might point more strongly towards liver involvement.

It's an important piece of information, but it's just one piece of a larger health puzzle that helps guide further investigation and discussion about your well-being.

An AST reading around 148 U/L points towards a few primary culprits for liver inflammation or damage. A very common cause is viral hepatitis, such as Hepatitis A, B, or C, where the virus directly attacks liver cells.

Excessive alcohol consumption over time can also lead to alcoholic hepatitis, causing this level of AST. Certain medications, including statins used for cholesterol or even some over-the-counter pain relievers like acetaminophen taken in high doses, can induce drug-induced liver injury.

Less commonly, but still plausible, is non-alcoholic steatohepatitis (NASH), a more severe form of fatty liver disease, often linked to obesity and metabolic syndrome.

Your AST 148 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 148 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) 148 U/L

Beyond specific medical interventions, certain lifestyle choices can play a supportive role in overall health, which in turn might positively influence various bodily functions, including enzyme levels. While these general health practices are beneficial for everyone, they become even more relevant when considering an elevated Aspartate Aminotransferase (AST) 148 U/L.

Regular physical activity, for instance, can promote cardiovascular health and help maintain a healthy weight. However, it's important to note that very intense exercise, especially resistance training or endurance sports, can temporarily elevate Aspartate Aminotransferase (AST) levels due to normal muscle breakdown and repair.

Therefore, if you engage in strenuous physical activity, discussing this with your healthcare provider is important for accurate interpretation of your Aspartate Aminotransferase (AST) result. Managing stress effectively is another critical component of a healthy lifestyle.

Chronic stress can impact various physiological processes, and finding healthy coping mechanisms, such as mindfulness, meditation, or hobbies, can contribute to overall well-being. Ensuring adequate and consistent sleep is also foundational.

Sleep deprivation can affect your body's ability to recover and regulate, potentially influencing metabolic processes. Avoiding excessive alcohol consumption is particularly important given that the liver is a primary organ affected by alcohol, and liver health significantly impacts Aspartate Aminotransferase (AST) levels.

Even moderate alcohol intake can sometimes influence liver enzymes. Staying hydrated throughout the day by drinking plenty of water supports kidney function and overall cellular health. These broader lifestyle habits, though not direct treatments for an Aspartate Aminotransferase (AST) 148 U/L, create a supportive environment for your body's systems to function optimally.

Discussing these general well-being strategies with your healthcare provider can help you tailor them to your specific needs and health profile.

With an AST of 148 U/L, immediate follow-up is crucial. Schedule an appointment with your primary care physician or a gastroenterologist within the next week to discuss potential causes and management.

They will likely order further tests, including viral hepatitis serologies, a complete blood count, and potentially tests for autoimmune liver disease and iron overload. Consider temporarily abstaining from alcohol and reviewing all current medications and supplements with your doctor to identify any potential hepatotoxins.

Tracking any new symptoms like fatigue, jaundice, or abdominal pain is important to report.

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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