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

138 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 97 U/L over the normal ceiling of 41. That reads elevated.

138 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) 138 U/L: Is That High?

Borderline. 138 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 138 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
138 ÷ 38 =3.6AST 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.
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Is Aspartate Aminotransferase (AST) 138 U/L Low, Normal, or High?

Aspartate Aminotransferase (AST) 138 U/L might be considered elevated when compared to typical reference ranges. While specific 'normal' levels can vary slightly among different laboratories, a result of 138 U/L is generally above what is commonly seen in healthy adults.

This value isn't necessarily low or within a usual range. Understanding what this number represents is the first step toward gaining clarity about your health picture.

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 registering at 138 U/L signifies a moderate, yet distinct, elevation above the normal range, indicating potential cellular damage, most commonly within the liver. This specific reading is nearly 250% higher than the upper limit of normal, suggesting an underlying process warrants investigation.

At this moderate elevation, common culprits often include conditions like non-alcoholic fatty liver disease (NAFLD), which is increasingly prevalent, or the impact of certain medications, even over-the-counter drugs, that the liver metabolizes.

Less frequently, but still possible, are mild alcoholic liver injury or even significant muscle exertion or injury, as this enzyme is also present in muscle tissue. To pinpoint the precise cause, healthcare providers will typically order additional liver function tests, such as Alanine Aminotransferase (ALT) to assess the ratio between these enzymes, along with tests for bilirubin and alkaline phosphatase.

An abdominal ultrasound might also be recommended to visualize the liver’s structure. A crucial point for patients to understand is that while this elevated value certainly necessitates follow-up, it doesn't automatically imply severe, irreversible damage.

Often, identifying and addressing the root cause—such as dietary changes for NAFLD, adjusting medications, or reducing alcohol intake—can lead to a significant improvement and a return to healthier liver function.

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 138 against a general adult target. What 138 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) 138 U/L

When your Aspartate Aminotransferase (AST) level is 138 U/L, it isn't a disease in itself, but rather an indicator or a signal that your body might be trying to tell you something important.

AST is an enzyme, a type of protein, found inside various cells throughout your body, notably in your liver and muscles. When these cells are damaged, AST can leak into your bloodstream, leading to an elevated reading like 138 U/L.

This elevation doesn't pinpoint the exact cause or location of the damage, but it certainly suggests that some cells may be experiencing stress or injury. It’s a bit like a check engine light on a car; it tells you there's an issue but doesn't specify if it’s the spark plugs or the fuel filter.

Exploring the potential reasons behind an elevated AST is a crucial step in understanding your overall wellness. Identifying the source of this cellular activity is important for maintaining your health in the long term.

This elevated AST level is a call to pay closer attention to your body's signals and consider what might be contributing to this finding.

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 aspartate aminotransferase (AST) level of 138 U/L, significantly exceeding the normal range, indicates active hepatocellular injury, primarily to the liver. While not critically high, this elevation suggests ongoing inflammation or damage that, if unaddressed, could lead to progressive fibrosis.

Persistent inflammation at this magnitude can disrupt normal metabolic functions, potentially impacting glucose regulation and protein synthesis. The underlying cause of this sustained elevation is crucial, as it dictates the long-term prognosis; unchecked hepatic insult can eventually progress towards cirrhosis and increase the risk of hepatocellular carcinoma over time, underscoring the need for prompt investigation into its origin.

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.

Here are a few general areas that an elevated Aspartate Aminotransferase (AST) level might encourage further consideration:

  • **Liver Wellness:** Could suggest liver cell irritation or damage.
  • **Muscle Health:** Might point to an issue with muscle cells.
  • **General Health Status:** A broader look at lifestyle factors and other health conditions.

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 138 U/L Mean?

Aspartate Aminotransferase (AST) is an enzyme, a natural protein, vital for various processes inside your cells, particularly in turning food into energy. It's found in many parts of the body, with significant amounts in the liver, heart, skeletal muscles, kidneys, and red blood cells.

Think of AST as a worker inside these cells. When cells are healthy, these workers stay inside. However, when cells are injured or damaged, their walls become permeable, and these AST workers can leak out into the bloodstream, increasing the level measured in a blood test.

An Aspartate Aminotransferase (AST) level of 138 U/L suggests that there might be some form of cellular irritation or damage occurring somewhere in the body. It’s important to remember that AST alone does not tell the whole story.

Because AST is present in several organs, an elevated level doesn't automatically mean a problem with a specific organ, like the liver. For instance, strenuous exercise, muscle injuries, or even certain medications can sometimes lead to temporary AST elevations.

Healthcare professionals often look at AST in conjunction with other enzyme levels, such as Alanine Aminotransferase (ALT), to get a clearer picture of liver health, as ALT is more specifically concentrated in the liver.

Understanding that an Aspartate Aminotransferase (AST) of 138 U/L is a signal for further investigation, rather than a definitive diagnosis, is key to approaching this result with a balanced perspective.

It invites a deeper exploration into your body's well-being and what might be contributing to this particular reading.

A concentration of AST at 138 U/L is most plausibly linked to acute viral hepatitis, such as Hepatitis A or B, or a drug-induced liver injury from a new medication or supplement.

Excessive alcohol consumption, particularly binge drinking patterns, could also elevate AST to this level by directly damaging hepatocytes. Non-alcoholic fatty liver disease (NAFLD) with superimposed inflammation, known as NASH, is another strong contender.

Less likely but possible causes include early-stage autoimmune hepatitis or ischemic hepatitis due to transient hypoperfusion.

Your AST 138 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 138 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) 138 U/L

Making conscious lifestyle choices that support your overall health can be a proactive way to maintain bodily functions, which indirectly contributes to balanced enzyme levels like Aspartate Aminotransferase (AST). While an Aspartate Aminotransferase (AST) of 138 U/L calls for a conversation with a healthcare provider, adopting supportive habits can positively impact your well-being.

Regular physical activity, for instance, helps promote healthy circulation and muscle function. However, very intense exercise can temporarily elevate AST levels due to normal muscle breakdown. Therefore, finding a balanced routine that includes moderate activity, such as brisk walking, swimming, or cycling, several times a week, as recommended by organizations like the American Heart Association, is generally beneficial.

Adequate rest and sleep are also fundamental. During sleep, your body repairs and regenerates cells, a process critical for maintaining organ health. Chronic sleep deprivation can put stress on your body, potentially affecting various systems.

Furthermore, managing stress through techniques like mindfulness, meditation, or spending time in nature can have a profound impact on your physical health. Prolonged stress can influence hormonal balance and inflammation, which in turn can affect cellular well-being.

Keeping hydrated by drinking enough water throughout the day is another simple yet powerful way to support kidney function and overall bodily processes. These general wellness practices are pillars of good health that contribute to a resilient body, which is better equipped to handle daily demands and maintain internal balance, including the healthy functioning of cells that produce enzymes like Aspartate Aminotransferase (AST).

If your AST is 138 U/L, your immediate next step is a comprehensive medical evaluation focusing on liver health. You should schedule an appointment with your primary care physician to discuss your medical history, including medications, alcohol intake, and any recent illnesses.

They will likely order viral hepatitis serologies and auto-immune markers, along with a lipid panel and potentially an abdominal ultrasound to assess liver structure. Consider temporarily abstaining from alcohol and discontinuing any non-essential supplements or over-the-counter medications until cleared by your doctor. Follow-up testing in 4-6 weeks is recommended.

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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