Sample type: Urine - 24 hour

Test name: Trimethylamine a.k.a. TMA

Condition / Indication: Fish Odour Syndrome

Special precautions & notes: Please discuss request with laboratory.

Reference range: TMA <7.7 μmol/mmol creatinine, TMA-n-Oxide <119 μmol/mmol creatinine, % N-Oxidation >90-94%

Container: 24 hour (HCl acid - Red container)

Alternative container: Random urine also accepted provided fresh sample: 20mL in universal (white top), to be acidified to pH2 on arrival in laboratory.

Ideal volume (mL): n/a

Referred outside NBT for analysis? Yes

Discipline: Clinical Biochemistry

Section: Metabolic Biochemistry

Turnaround time: 8 weeks

Referral location: Department of Clinical Chemistry and Newborn Screening, Sheffield Children's NHS Trust, Western Bank, Sheffield, S10 2TH