Nitisinone (NTBC) and Succinylacetone
Description: 
This test is part of the transfer of services from the WellChild laboratory at the Evelina Children’s Hospital. Nitisinone (NTBC) and succinylacetone by liquid chromatography tandem mass spectrometry (LC-MS/MS). 
This test is not currently included in the laboratory's UKAS scope of accreditation to ISO15189:2012
This test is not currently included in the laboratory's UKAS scope of accreditation to ISO15189:2012
Clinical details: 
For the monitoring of known patients with inherited metabolic disease, specifically tyrosinaemia type 1.  
Reference range: 
NTBC recommended therapeutic target range 20-40 µmol/L
Synonyms or keywords: 
NTBC, Suac, Succ, SA
Units: 
µmol/L
Department: 
Location: 
Sample type and Volume required: 
Bloodspot card. Two spots > 8 mm in diameter. Blood must be soaked through & not multi-spotted. Blood spots must be allowed to dry sufficiently before being placed in the glassine envelope. 
Special sample instructions: 
Samples that are received without a minimum of three forms of patient identifiable information will be rejected and will not be analysed. Sample collection date must be supplied.
Storage and transport: 
DBS SuAc is reported to be stable when stored at low humidity (<5% of initial concentration lost over 30 days). However, due to significant losses at high humidity, specimens should be stored frozen at -20°C in foil envelope with desiccant until analysis. DBS samples can be sent at ambient temperature via first class post or courier. 
Contacts:
								
										                                                                                For clinical advice or interpretation of results, please contact the laboratory in the first instance.
									
								Last updated: 30/07/2025

