Leucine aminopeptidase blood test
What Is Leucine Aminopeptidase (LAP) Blood Test?
Leucine aminopeptidase (LAP) is an enzyme found in the blood and other tissues. This test is used to determine how well your liver is functioning and to diagnose certain medical conditions. A normal level of LAP indicates that your liver is healthy. High levels of LAP in the blood can be an indicator of disease or infection.
Preparation for Leucine Aminopeptidase Blood Test
No preparation is needed for the test. The patient should wear a loose-fitting shirt or gown to make it easier to draw the blood.
Procedure for Leucine Aminopeptidase Blood Test
A sample of blood is taken in the usual way using a syringe and needle. The patient should be relaxed and comfortable. The sample is then sent to a laboratory for analysis.
Types of Leucine Aminopeptidase Blood Test
There are two main types of LAP blood test. The first is a routine test, used to screen for liver disease and to measure LAP levels in people with known or suspected liver disease. The second type is called a “therapeutic” or “more advanced” test and is used to determine how well you are responding to treatment or to track changes in liver function over time.
Risks for Leucine Aminopeptidase Blood Test
Blood tests are generally safe, with minimal risk. Some people may experience slight discomfort or a brief period of lightheadedness at the time of the test. There is also a slight risk of infection or bleeding at the needle site.
Why Is a Leucine Aminopeptidase Blood Test Done?
LAP blood tests are often ordered as part of a comprehensive liver panel to evaluate liver function. LAP levels can also be used to diagnose certain liver diseases, including viral hepatitis, cirrhosis, and fatty liver. They can also help monitor the progression or regression of liver disease over time.
When Should a Leucine Aminopeptidase Blood Test Be Done?
A LAP blood test is typically ordered when someone has symptoms of liver disease, such as jaundice, abdominal pain, or dark urine. It may also be ordered when there are concerns about alcohol abuse, as well as in certain cases of exposure to toxic substances.
