When I was going through rehab myself, I also encountered the CIWA assessment. This is a special scoring system that helps doctors carefully monitor withdrawal symptoms — for example, the level of anxiety, tremors, headaches, disorientation. The results depend on how quickly and what kind of help will be provided. If you want to understand in more detail, I highly recommend reading the article on the website
https://unitedrecoveryproject.com/rehab-blog/ciwa-assessment/ . Each stage is well explained there and it is clear why the correct assessment can save a life.