: Citrate Synthase, Blood

: What Is Citrate Synthase?

: Citrate synthase is an enzyme found in the energy-producing structures of cells called mitochondria. It helps start a key series of chemical reactions that cells use to generate energy from nutrients. Because it is present in nearly all cells, it is sometimes measured as a marker of mitochondrial function or cellular energy metabolism.

: Why Might This Test Be Ordered?

: This is not a routine blood test. It may be used in specialized research or clinical settings to study mitochondrial function or certain metabolic conditions. Your healthcare provider would explain the specific reason if this test is being considered for you.

: How the Sample Is Collected

: The test is typically performed on a blood sample collected by a trained healthcare professional, usually from a vein in your arm. The sample is then processed and analyzed in a specialized laboratory. Follow any preparation instructions your provider gives you.

: What the Results Mean

: Results reflect the measured level or activity of citrate synthase in your sample. Because reference ranges and interpretation depend on the specific laboratory method used, your provider will review your result alongside your medical history and other tests. There is no single universal normal value.