Cyanide, Blood by High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS) is a specialized test used to accurately determine cyanide levels in the blood. This analysis relies on high-performance liquid chromatography to effectively separate cyanide from other blood components, followed by tandem mass spectrometry to precisely quantify the amounts. Cyanide is a toxic substance that can have serious health effects, and this test is used to assess exposure from industrial or environmental sources. It is recommended in emergency situations, such as suspected poisoning cases, to help physicians make rapid and effective treatment decisions.