Table of Contents
What should the ratio of AST to ALT be?
A normal AST:ALT ratio should be <1. In patients with alcoholic liver disease, the AST:ALT ratio is >1 in 92\% of patients, and >2 in 70\%. AST:ALT scores >2 are, therefore, strongly suggestive of alcoholic liver disease and scores <1 more suggestive of NAFLD/NASH.
When should I worry about low Alt?
Low levels are generally considered good and are usually not a cause for concern. However, in some cases a low ALT can be a result of an underlying medical condition, such as vitamin B6 deficiency or chronic kidney disease.
Which is worse 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 a low AST level bad?
Low AST levels are expected and normal – they are just uncommon in the general population. The reference ranges are based on where 95\% of the healthy population falls into, which means that there are 5\% of the people who are healthy and not within the reference range!
What happens if ALT is too low?
Low alanine aminotransferase (ALT) blood levels are known to be associated with frailty and increased risk of long-term mortality in certain populations. However, the contribution of this marker to long-term outcome has not been assessed in patients with chronic coronary heart disease.
What does it mean when your alt and AST are high?
Liver cirrhosis also elevates ALT and AST levels, as does organ damage from alcohol, or a diminished flow of blood from the heart to the liver for some reason. Lower than normal test results for ALT and AST are generally treated as a “normal” result.
How do you find the ratio of AST and Alt?
Here’s an easy way to find out your AST:ALT ratio: divide your AST level as shown on your blood test results by your ALT level. For example, if your AST is 20 U/L and your ALT is 18 U/L, then your ALT ratio would be 1.05, which is within the normal range. What is the magnitude of AST and ALT elevations for acute viral hepatitis?
What is the normal level of Alt in liver?
The level of ALT is the primary indicator of liver health as this type of enzyme are only mainly found in liver cells. Normal ALT values are around 10-40 units per litre. This range might vary according to different countries or laboratories, but the upper limit is usually between 35-40. [1]
What is a normal AST blood test?
The AST blood test has a normal range of 10-40 units per liter. Every laboratory has its own normal range, however, so certain results that fall outside of these reported norms may still be considered a “normal” result by some medical providers.