The main purpose of doing that is:
* **Checking liver health:** AST levels go up when the liver is damaged, so it's a key indicator for liver disease or injury.
* **General health screenings:** It's often part of routine blood tests to get an overall picture of how your organs are functioning.
* **Monitoring conditions:** If someone has a known liver issue, this test helps doctors keep an eye on whether treatments are working or if the condition is changing.
It's all about catching signs of tissue damage, especially in the liver, even before someone might feel sick!