Chromatography/Mass Spectrometry
Serum or Plasma
Quest Diagnostics San Juan Capistrano
Other Reference Test
Monday-Saturyda
4-5 Days
1-2 mL Blood
Red Top (No Additive)
Plasma collected in a sodium heparin (green-top) tube is also acceptable. Specimen must be accompanied with a special Quest Metabolic Newborn Screen Follow-Up TRF with the CDPH Quest Client account number to lab.
Frozen-Only
Room Temp=5 Hours; Refrigerated=5 Days; Frozen=30 Days
Moderate and gross hemolysis
1 mL Serum or Plasma
0.4 mL Serum or Plasma
Specimen must be accompanied with a special Quest Metabolic Newborn Screen Follow-Up TRF with the CDPH Quest Client account number to Quest frozen. Contact Jennifer Widmer (Metabolic/NBS Coordinator) at x224642 for any questions.
Carnitine, Total; Carnitine, Free; Carnitine, Esters; and Esterified/Free Ration.
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