The term "blood works" refers to a set of medical tests that are performed on a patient's blood in order to diagnose various diseases or conditions. Some common synonyms for this term include blood screening, blood tests, blood analysis, and blood profile. These tests typically measure a variety of factors, such as the levels of different types of blood cells, the presence of various proteins and enzymes, and the presence of specific antibodies or other markers of disease. By analyzing these different factors, doctors can gain a better understanding of a patient's overall health and can make more informed decisions about their course of treatment.