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ALT blood levels are a marker of liver health: low levels typically indicate a healthy liver, while high levels suggest liver damage . The normal range is around 7-35 U/L in women and 7-40 U/L in men.
Normally, ALT levels in the blood are low. If your liver is damaged, it will release more ALT into your blood and levels will rise. But your ALT level alone doesn't give doctors a full...
What is an ALT blood test? An alanine transaminase (ALT) blood test measures the amount of ALT in your blood. ALT levels in your blood can increase when your liver is damaged, so healthcare providers often use an ALT blood test to help assess the health of your liver.
Understand the result with high, low, and normal results of AST and ALT. Symptoms of elevated or high liver enzymes in the blood include fever, abdominal pain, poor appetite, itching, and nausea. Elevated levels of AST and ALT may signify the level of liver damage and varies by person.
There are several reasons why your ALT levels may be low in a blood test: Liver disease: In some cases, low ALT levels may indicate severe liver disease or cirrhosis. This is because the liver cells responsible for producing ALT may be significantly damaged or destroyed.
Like ALT, AST is usually present in blood at low levels. An increase in AST levels may mean liver damage, liver disease or muscle damage. This test is sometimes referred to as SGOT.
The ALT level in the blood is a bit low. Low ALT values are usually a positive sign and they are not considered out of range. It may be a matter of concern if TSH parameter is high that may suggest hypothyroidism or in case an urinary tract infection is present.
Low ALT levels are typically not a cause for concern but may indicate underlying conditions in older adults. One 2017 study showed that low ALT levels in older adults were associated with frailty, disability, sarcopenia, malnutrition, and a higher risk of cardiovascular-related death.
In some cases, people have abnormally low ALT levels in the blood. This has been associated with malnutrition, frailty, aging, and loss of muscle mass (known as sarcopenia ).
Normally, blood ALT levels are low. However, when liver cells are damaged due to illness, injury, or medication, they release ALT, increasing its blood levels [4]. Therefore, ALT blood levels are a marker of liver health: low levels typically indicate a healthy liver, while high levels suggest liver damage [5].