: Tetradecadienoylcarnitine, Substance Concentration, Serum

: What This Test Measures

: This test determines the substance concentration of tetradecadienoylcarnitine in a serum sample. Acylcaritines are compounds formed when fatty acids are attached to carnitine, a molecule needed to transport fatty acids into cells for energy production. Measuring individual acylcarnitines helps show whether fatty acid processing is proceeding normally.

: How the Sample Is Collected

: A blood sample is drawn from a vein, usually in the arm, and the serum is separated for analysis. No special preparation is typically required unless your care team gives specific instructions. The analyte is measured by a laboratory method suited to detecting and quantifying acylcarnitines.

: What Results Can Indicate

: Results are interpreted alongside other acylcarnitines and clinical information. Abnormal levels of tetradecadienoylcarnitine may prompt further evaluation of fatty acid oxidation or related metabolic pathways. Because interpretation depends on the full testing panel and your health history, your clinician will explain what your specific result means.

: Why Your Clinician May Order It

: This measurement is usually ordered as part of a broader metabolic or acylcarnitine panel rather than on its own. It may be used when there is concern about how the body breaks down fats for energy, or to follow up on other abnormal metabolic findings.