Phosphoethanolamine analysis in urine, quantitative, by liquid chromatography-tandem mass spectrometry (LC-MS/MS), is a specialized test used to measure phosphoethanolamine levels in urine. Phosphoethanolamine is an important compound in metabolic processes and may play a role in a range of health disorders. A urine sample is collected and analyzed using liquid chromatography-tandem mass spectrometry, providing accurate and highly sensitive results. This test helps doctors diagnose specific conditions such as phosphate metabolism disorders, determine treatment needs, or monitor disease progression. It is recommended when certain symptoms appear or there is a family history of similar conditions to ensure a comprehensive assessment of metabolic health.