https://www.gosh.nhs.uk/wards-and-departments/departments/laboratory-medicine/laboratory-database/creatine-and-guanidinoacetate-plasma-urine/

Creatine and guanidinoacetate: plasma & urine

EPIC

Plasma Guanidinoacetate Urine Guanidinoacetate

Section

Chemical Pathology - Metabolic

Clinical indications

Creatine synthesis/transport disorders

Specimen requirement

0.2 ml li hep plasma, 0.5 ml fresh random urine

Dispatch and handling instructions

Plasma: Separate ASAP. Freeze immediately. Send frozen.. Urine: Freeze immediately. Send frozen.. Paired plasma & urine samples are required for diagnosis of creatine transport disorders. Plasma is sufficient for creatine sythesis disorders only

Turnaround time

4 weeks

Synonym

GAA

Is it IS0 15189 accredited?

Yes