A normal ALT test result can range from 7 to 55 units per liter (U/L). Levels are normally higher in men. Slightly high ALT levels may be caused by: Alcohol abuse.

Also Is 70 a high ALT level?

Normal levels of AST and ALT may slightly vary depending on the individual laboratory’s reference values. Typically the range for normal AST is reported between 10 to 40 units per liter and ALT between 7 to 56 units per liter. Mild elevations are generally considered to be 2-3 times higher than the normal range.

Subsequently, What is considered a high ALT level? The upper limit of normal for ALT is 55 IU/L. When an ALT level is double to triple the upper limit of normal, it is considered mildly elevated. Severely elevated ALT levels found in liver disease are often 50 times the upper limit of normal.

When should I worry about ALT? When ALT levels are very high, it may be a sign of an acute liver problem. Mild or moderate elevation, especially if it persists on several tests over time, can be an indicator of a chronic disease. However, the degree of elevation alone is not a reliable predictor of the extent of injury to the liver.

What does a high ALT mean?

High levels of ALT may indicate liver damage from hepatitis, infection, cirrhosis, liver cancer, or other liver diseases. Other factors, including medicines, can affect your results. Be sure to tell your health care provider about all the prescription and over-the counter medicines you are taking.

Is ALT 71 high?

What ALT level is considered high? The upper limit of normal for ALT is 55 IU/L. When an ALT level is double to triple the upper limit of normal, it is considered mildly elevated. Severely elevated ALT levels found in liver disease are often 50 times the upper limit of normal.

What is a critical ALT level?

Greater than 50 µg/mL. Alanine Aminotransferase (ALT) Greater than 1000 U/L. Aspartate Aminotransferase (AST) Greater than 1000 U/L.

When should I worry about ALT?

When ALT levels are very high, it may be a sign of an acute liver problem. Mild or moderate elevation, especially if it persists on several tests over time, can be an indicator of a chronic disease. However, the degree of elevation alone is not a reliable predictor of the extent of injury to the liver.

Is 200 high for liver enzymes?

Acute alcoholic hepatitis may be mild or life threatening. The pattern of liver test abnormality is hepatocellular. The AST is typically in the 100 to 200 IU/L range, even in severe disease, and the ALT level may be normal, even in severe cases.

Is ALT 50 high?

Alanine aminotransferase (ALT) is an enzyme found mainly in the liver. High levels (>50) indicate damage to liver cells as a result of infection (hepatitis, infectious mononucleosis, etc.) or toxic levels of drugs (e.g. acetaminophen [Tylenol]) or chemicals (e.g. chloroform) or alcohol.

Is 400 high for liver enzymes?

AST and ALT are specific to the liver, with levels greater than 400 units/L being indicative of hepatocellular disease. Levels above 1000 units/L raise suspicion for processes that cause necrosis of hepatocellular tissue such as ischemia, viral hepatitis, or drug toxicity.

What is an unhealthy ALT level?

Conclusion: In our study, the upper limit of the healthy range of the serum ALT level was 31 IU/L for males and 23 IU/L for females. An unhealthy normal ALT level was associated with a higher prevalence of metabolic syndrome and IR.

When should I be concerned about elevated liver enzymes?

Elevated liver enzymes may be a sign that a person’s liver is not working properly. Damaged or inflamed liver cells release enzymes into the bloodstream, which a blood test will detect. Doctors test people for elevated liver enzymes if they have symptoms of conditions that typically cause liver damage.

Is ALT 100 need for concern?

An ALT test result of >100 IU/l is a clear indicator of serious liver disease, but a mildly elevated ALT result (30–100 IU/l) is often ascribed to the use of medication (for example statins) or alcohol, obesity, or, for lower ALT levels (<50 IU/l), considered as part of the normal distribution of test results.

What causes a raised ALT?

One of the biggest causes of raised ALT levels is fat in the liver, usually caused by drinking too much alcohol too frequently and/or eating a diet that is high in saturated fat. Raised ALT levels are an early sign of fatty liver disease.

How can I lower my ALT levels quickly?


Natural ways to lower ALT levels

  1. Drinking coffee. Drinking coffee can help to lower ALT levels. …
  2. Exercising regularly. …
  3. Losing excess weight. …
  4. Increasing folic acid intake. …
  5. Making dietary changes. …
  6. Reducing high cholesterol. …
  7. Taking care with medications or supplements. …
  8. Avoiding alcohol, smoking, and environmental toxins.

Which is worse high AST or ALT?

In addition, patients with Wilson’s disease or cirrhosis due to viral hepatitis may have an AST that

is greater than the ALT

, though the ratio typically is not greater than two. When the AST is higher than ALT, a muscle source of these enzymes should be considered.


AST/ALT ratio
LOINC 16325-3, 1916-6

Is 78 a high ALT level?

The normal range for ALT is 10-40 units per liter (U/L) of blood for men and 7-35 U/L for women.

Is 100 a high ALT level?

An ALT test result of >100 IU/l is a clear indicator of serious liver disease, but a mildly elevated ALT result (30–100 IU/l) is often ascribed to the use of medication (for example statins) or alcohol, obesity, or, for lower ALT levels (<50 IU/l), considered as part of the normal distribution of test results.

Is ALT 105 need for concern?

Mild ALT hypertransaminasemia (50 – 150 U/l in adult men, 35 – 105 U/l in adult women): The ALT levels in the blood are a bit higher than normal but if you are not experienced any symptom it is usually not a matter of concern.

What is the upper limit of normal for ALT?

Currently, the upper limit of normal ALT has been re-evaluated in different countries by involving different age groups. These studies suggested that the upper limit of normal ALT should be revised and the recommendations are 30 U/L for men and 19 U/L for women respectively [4], [5], [6], [7].

How quickly can ALT levels drop?

In healthy individuals, ALT levels can vary 10 to 30% from one day to the next. ALT levels can fluctuate 45% during a single day, with highest levels occurring in the afternoon and lowest levels at night. A high body mass index can increase ALT levels by 40 to 50%. Reference range is 14 – 63 IU/L.

Does High ALT mean liver damage?

High levels of ALT may indicate liver damage from hepatitis, infection, cirrhosis, liver cancer, or other liver diseases. Other factors, including medicines, can affect your results. Be sure to tell your health care provider about all the prescription and over-the counter medicines you are taking.

Can slightly elevated liver enzymes be normal?

Mild, asymptomatic elevations of alanine transaminase (ALT) and aspartate transaminase (AST) levels, defined as less than five times the upper limit of normal, are common in primary care.