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

158 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 117 U/L over the normal ceiling of 41. That reads elevated.

158 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) 158 U/L: Is That High?

Borderline. 158 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 158 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
158 ÷ 38 =4.2AST 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) 158 U/L Low, Normal, or High?

Aspartate Aminotransferase (AST) 158 U/L might be considered higher than typical for many adults. Levels vary based on many factors, but a reading of 158 U/L generally falls above what's usually seen as a standard range.

Understanding what this specific measurement means for your overall well-being is a helpful step. It's natural to wonder about a result that stands out from what you might expect. Let's explore more about this enzyme and what influences its levels.

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 158 U/L signals significant acute or ongoing cellular distress, most commonly originating from the liver or skeletal muscles. This value, which is nearly four times above the upper limit of the normal range, demands prompt clinical attention to identify the precise underlying cause of the cellular injury.

At this elevation, common culprits often include acute liver inflammation, such as early stages of viral hepatitis or alcohol-related liver damage, and sometimes adverse reactions to certain medications or herbal supplements.

Less frequently, significant muscle injury from trauma, intense exercise, or specific muscle disorders can also elevate AST to 158 U/L. To thoroughly investigate and pinpoint the source, your healthcare provider will typically order follow-up tests.

These often include Alanine Aminotransferase (ALT) to assess liver specificity, and potentially specific blood tests for hepatitis viruses, comprehensive liver function panels, or diagnostic imaging like an abdominal ultrasound. If muscle damage is suspected, a Creatine Kinase (CK) test would also be ordered.

It’s important for patients to understand that while an AST of 158 U/L is a clear indicator for investigation, observing the precise *trend* of this value over time, along with other related enzyme levels, often provides more crucial diagnostic clarity than a single snapshot, distinguishing transient issues from more persistent concerns.

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 158 against a general adult target. What 158 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) 158 U/L

Understanding an Aspartate Aminotransferase (AST) 158 U/L result can be a key step in exploring your health. AST is an enzyme, a type of protein, found in many tissues throughout the body, including the liver, heart, muscles, kidneys, and brain.

When these cells are damaged, AST can be released into the bloodstream, leading to an elevated level. A reading of Aspartate Aminotransferase (AST) 158 U/L doesn't point to one single cause, but it often suggests that something might be causing stress or damage to cells in one or more of these organs.

It's like a signal that prompts further investigation to understand the full picture of your health. Sometimes, even seemingly minor events, like intense exercise or certain medications, can temporarily raise this enzyme level.

However, persistent or significantly elevated Aspartate Aminotransferase (AST) 158 U/L warrants a closer look to rule out underlying conditions. It’s about piecing together the information to build a complete understanding of your unique health situation.

Delving into the reasons behind an elevated AST level is an important part of proactive 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 →

An AST level of 158 U/L, significantly above the typical normal range of 5-40 U/L, suggests substantial ongoing liver cell injury or inflammation. At this elevated level, the risk of progressive liver damage increases.

This could manifest as worsening fibrosis, potentially leading to cirrhosis if the underlying cause is not addressed. Furthermore, acute conditions causing such a rise, like severe viral hepatitis or drug-induced liver injury, carry their own immediate risks, including acute liver failure in extreme cases.

The sustained release of AST from damaged hepatocytes can impair the liver's ability to perform its vital functions, such as detoxification and protein synthesis, potentially impacting overall systemic health.

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:

  • Cellular stress in the liver.
  • Muscle strain or injury.
  • Temporary impacts from daily activities.

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 158 U/L Mean?

When your Aspartate Aminotransferase (AST) is 158 U/L, it indicates that this particular enzyme has been released into your bloodstream in a higher amount than usually observed. AST plays a crucial role inside cells, helping convert food into energy.

It's like a tiny worker in the cellular factories of your body. Because AST is present in many organs, an elevated Aspartate Aminotransferase (AST) 158 U/L result isn't specific to a single organ or condition.

It acts as a general indicator of cell damage or inflammation somewhere in the body. For example, if liver cells are irritated or damaged, they can release AST. Similarly, damage to heart muscle after a heart attack or to skeletal muscles after a strenuous workout could also lead to an increase.

Even conditions affecting red blood cells can sometimes influence this level. It's essential to remember that Aspartate Aminotransferase (AST) 158 U/L is just one piece of the puzzle. It doesn't tell the whole story on its own.

Instead, it suggests that your healthcare provider might want to consider other factors, perform additional tests, or review your medical history and lifestyle to understand the context of this elevated reading.

Understanding the role of AST helps appreciate why such a reading prompts a more comprehensive look at your health profile.

An AST value of 158 U/L, when the normal range is up to 40 U/L, points towards moderate liver inflammation or damage. The most common culprits for this specific elevation often involve viral hepatitis, particularly Hepatitis B or C, or acute drug toxicity, such as from acetaminophen overdose or certain prescription medications affecting the liver.

Non-alcoholic fatty liver disease (NAFLD), especially when progressing to non-alcoholic steatohepatitis (NASH), can also present with AST levels in this range, often exacerbated by obesity and metabolic syndrome. Less frequently, but still plausible, are autoimmune hepatitis or muscle injury, though isolated AST elevation without a corresponding ALT rise might lean more towards muscle if other liver conditions are ruled out.

Your AST 158 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) 158 U/L

Making certain lifestyle adjustments can play a supportive role in overall wellness, which in turn might influence enzyme levels like Aspartate Aminotransferase (AST) 158 U/L. While these changes are not direct treatments for an elevated AST, they contribute to a healthier body environment.

For instance, managing stress effectively can have wide-ranging benefits. Chronic stress can impact various bodily systems, including the liver, which is a key organ where AST is found. Incorporating relaxation techniques, such as meditation, deep breathing exercises, or spending time in nature, can help reduce stress levels.

Getting adequate, restorative sleep is another foundational pillar of health. When you sleep, your body repairs and regenerates cells, and insufficient sleep can contribute to overall bodily stress. Aiming for 7-9 hours of quality sleep each night supports cellular health.

Furthermore, being mindful of alcohol consumption is important. Alcohol is metabolized in the liver, and excessive intake can place a burden on this vital organ. The American Heart Association and similar organizations often highlight the importance of moderation, if alcohol is consumed at all.

While these lifestyle factors don't directly target an Aspartate Aminotransferase (AST) 158 U/L reading, they promote general well-being that can indirectly support organ health and potentially influence enzyme levels over time. It's about empowering your body's natural resilience.

With an AST reading of 158 U/L, immediate medical re-evaluation is paramount. Schedule a follow-up appointment with your healthcare provider to discuss further investigations, which may include repeating the AST and ALT tests, checking viral hepatitis serologies (HBsAg, anti-HCV), and possibly autoimmune markers or creatine kinase if muscle involvement is suspected.

Lifestyle adjustments should focus on eliminating potential hepatotoxins; cease all alcohol consumption immediately and review all over-the-counter medications and supplements for any liver-damaging potential. Depending on the findings, referral to a gastroenterologist or hepatologist may be necessary for specialized management and monitoring of liver health.

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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