👉 The Sullivan fluid, also known as Sullivan's fluid or Sullivan's viscous fluid, is a viscous, colorless, and odorless liquid used primarily in medical diagnostics, particularly for assessing liver function. It is a complex mixture of proteins and other substances found in the blood, which can be measured through a simple blood test. The fluid's viscosity is indicative of liver health; elevated levels often signal liver damage or disease, such as cirrhosis or hepatitis. By analyzing the Sullivan fluid's properties, healthcare professionals can gain valuable insights into the liver's ability to perform essential functions like detoxification and protein synthesis, making it a crucial tool in diagnosing and monitoring liver conditions.