What MELD score is bad?

Could you please elaborate on what constitutes a "bad" MELD score? Is there a specific threshold or range that is generally considered undesirable? How does a high MELD score impact an individual's health and prognosis, and what steps can be taken to manage or improve it? Additionally, are there any specific factors that contribute to a high MELD score, and how can they be mitigated? Thank you for your insight.