Red top (preferred) or SST tube.
0.5 mL serum
0.3 mL serum
Collect specimen in a red top (preferred) or SST tube. Centrifuge, aliquot serum into plastic vial and refrigerate or freeze. For long term storage, freeze at -20C.
Collect specimen in a red top (preferred) or SST tube.
Wednesday, Thursday and Sunday
8 hours
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Age 0-6 years: 11.3 - 64.7 mcg/dL Age 7-12 years: 12.8 - 81.2 mcg/dL Age 13-17 years: 14.4 - 97.7 mcg/dL Age >or=18 years: 32.5 - 78.0 mcg/dL
Monitoring Vitamin A therapy and assessing toxicity; diagnosis of vitamin A deficiency.
Also available, Vitamin A and Vitamin E (VITAE).
2923-1
84590
KA022