Urine Organic Acids Test

This private metabolic urine test analyses organic acid metabolites excreted in urine using gas chromatography-mass spectrometry (GC-MS). The catalogue price is £390.63 with no phlebotomy fee, and results are available in about 3 weeks.

Clinical biochemists and metabolic physicians use qualitative and quantitative urine organic acid profiling to investigate inherited metabolic disorders, mitochondrial pathways and organic acidaemias.

Written by Mr Stephen Lingam. Reviewed by Dr Mohammad Bakhtiar (GMC 4694470) on 18/10/2026.

Is a blood sample needed for the urine organic acids test?

No. This is a urine test, so there is no venous blood draw and no £50 phlebotomy fee.

What type of urine sample is best?

A fresh random or early morning urine sample collected without preservatives and frozen promptly at the clinic is standard for metabolic organic acid analysis.

How long do urine organic acid results take?

Specialist metabolic chromatography and clinical scientist interpretation take approximately 3 weeks.

Do medicines or diet affect urine organic acids?

Yes. Certain medications (such as valproate or paracetamol) and dietary supplements produce characteristic urinary metabolites, so list current medicines when attending.