3-Hydroxybutyrate Plasma [ 0.5ml FluorideOxalate ]
7-Dehydrocholesterol (Smith-Lemli-Opitz syndrome) Plasma [ LithiumHeparin ] or serum
Acyl carnitines Plasma or Dried bloodspot or bile
Alpha-fucosidase (frucosidosis) Plasma [ LithiumHeparin ] or Whole blood [ EDTA ] or Fibroblasts (1x 25cm flask)
Alpha-galactosidase A (Fabry disease) Whole blood [ EDTA ] or Fibroblasts (2x 25cm flask)
Alpha-glucosidase - acid maltase (GSD Type II – Pompe disease) Whole blood [ EDTA ] or Fibroblasts (1x 25cm flask)
Alpha-mannosidase (Alpha-mannosidosis) Whole blood [ EDTA ] or Fibroblasts (1x 25cm flask) or Serum
Amino acids (qualitative) Urine
Amino acids (quantitative) Plasma [ LithiumHeparin ] or Urine (random plain) or CSF
Arylsulphatase A -sulphatidase (Metachromatic leukodystrophy) Whole blood [ EDTA ] or Fibroblasts (1x 25cm flask)
Beta-galactosidase (MPS Type IVB) Whole blood [ EDTA ] or Fibroblasts (1x 25cm flask)
Beta-glucosidase – glucocerebrosidase (Gaucher disease) Whole blood [ EDTA ] or Fibroblasts (1x 25cm flask)
Beta-glucuronidase (MPS Type VII) Whole blood [ EDTA ] or Fibroblasts (1x 25cm flask)
Beta-mannosidase (Beta-mannosidosis) Whole blood [ EDTA ] or Fibroblasts (1x 25cm flask)
Biopterin Whole blood [ LithiumHeparin or EDTA ]
Biotinidase Whole blood [ LithiumHeparin ]
Carnitine Plasma [ LithiumHeparin ] or Urine
Chitotriosidase (Gaucher disease) Plasma [ LithiumHeparin ]
CystineUrine plain (random)
Cystine in white blood cells (Cystinosis) Whole blood [ LithiumHeparin ]
Dihydropteridine reductase (Dihydropteridine reductase deficiency) Whole blood [ LithiumHeparin ]
Disaccharidases -lactase,sucrase-isomaltase (Lactase deficiency) Duodenal biopsy (Send frozen, sample must be stored at 80oC before sending)
Free fatty acids Plasma [ FluorideOxalate]
Fructose-1,6-bisphosphatase (Fructose-1,6-bisphosphatase deficiency) Whole blood [ EDTA ] or Liver biopsy
Fumarylacetoacetase (Tyrosinaemia Type 1) Cultured fibroblasts (1x 25cm Flask) or Liver Biopsy
Galactose-1-phosphate (Galactosaemia monitoring) Whole blood [ Lithium Heparin ]
Galactose-1-phosphate uridyltransferase (Galactosaemia diagnosis) Whole blood [ Lithium Heparin ]
Galactosylceramidase -beta galactocerebrosidase (Krabbe disease) Fibroblasts (1x 25cm flask) or Whole blood [ EDTA ]
Glycosaminoglycans/mucopolysaccharides (MPS screen) Urine plain (Random)
Hexosaminidase A (GM2-gangliosidosis Type 1; Tay-Sachs disease) Serum or Whole Blood [ EDTA ] or Fibroblasts (1x 25cm)
Hexosaminidase A and B (GM2-gangliosidosis Type 2; Sandhoff disease) Serum or Whole Blood [ EDTA ] or Fibroblasts (1x 25cm)
Lysosomal acid lipase (Wolman disease/Cholesteryl ester storage disease) Whole Blood [ EDTA ] or Fibroblasts (1x 25cm)
Methylmalonic acid – Quantitative (GCMS)Plasma
N-Acetylgalactosaminidase (Schindler disease) Whole blood [ EDTA ] or Fibroblasts
N-Aspartyl-beta-glucosaminidase (Aspartylglucosaminuria) Plasma or Serum
Nitisinone – NTBC by HPLC-MSMSPlasma or Serum
Oligosaccharides Urine plain (random)
Organic acids (Qualitative) Urine plain (random)
Orotic acid, orotate Urine plain (random)
Oxalate Urine acidified (random)
Oxalate (Primary Hyperoxaluria)plasma [ EDTA ] (separated and frozen within 30 minutes of collection)
Palmitoyl protein thioesterase (Neuronal ceroid lipofuscinosis 1) Whole blood [ EDTA ] or Fibroblasts
Phenylalanine/tyrosine (Phenylketonuria monitoring) Whole blood [ Lithium Heparin ]
Phosphoethanolamine (hypophosphatasia) Urine plain (random)
Phytanate, phytanic acid (Peroxisomal disorders) Whole blood [ Lithium Heparin or EDTA or FluorideOxalate ]
Plasma lysosomal enzymes (Mucolipidosis II (I-cell disease); mucolipidosis type III (pseudo-Hurler dystrophy)) Plasma [ Lithium Heparin ]
Pristanic acid, pristanate (peroxisomal disorders) Whole blood [ Lithium Heparin or EDTA or FluorideOxalate ]
Pterins by HPLCBloodspots (collected while phe is elevated)
Reducing substances (Colourimetric)Urine or Faeces
Sialic acid Urine plain (random)
Sialyl-oligosaccharides Urine plain (random)
Sphingomyelinase (Niemann-Pick disease types A +B) Whole blood [ EDTA ] or Fibroblasts
Steroid sulphatase (X-linked ichthyosis) Whole blood [ EDTA ] or Fibroblasts
Succinylacetone (HPLC-MSMS)Plasma or Bloodspots
Sugar chromatography of mono & disaccharides (TLC)Urine or Faeces
Transferrin glycoforms (congenital disorders of glycosylation) Plasma or Serum
Tripeptidyl peptidase I (Neuronal ceroid lipofuscinosis 2) Whole blood [ EDTA ] or Fibroblasts
Very long chain fatty acids Whole blood [ Lithium Heparin or EDTA or FluorideOxalate ]