Laboratory tests are medical procedures that analyze samples from the body, such as blood, urine, or tissue. These tests help healthcare providers diagnose diseases, monitor health conditions, and evaluate the effectiveness of treatments. Common laboratory tests include blood tests, urinalysis, and biopsies, each serving specific purposes in patient care. The results from laboratory tests provide valuable information about a person's health. For example, a complete blood count can reveal issues like anemia or infection, while a cholesterol test assesses heart health. Accurate testing is crucial for making informed medical decisions and ensuring appropriate treatment plans.