Send us a sample

To send a sample to the Metabolic laboratory:



Metabolic Laboratory

Chemical Pathology

Great Ormond St Hospital

Great Ormond Street



Sample requirements

All plasma, urine, and faecal samples should be sent frozen.  Guthrie cards can be sent via first class post.  All samples sent need to comply with PI 650 for Catagory B substances when sent via courier and Royal Mail. 


For full details on sample requirements and shipping requirements for individual tests please refer to our  External Users Guide and for packaging requirements go to



For Busulfan enquiries and booking email:



All data sent to use is managed and protected by the Laboratory Systems Managers and Trust Policies




© 2011 Great Ormond Street Hospital for Children NHS Trust