Test Code: VitAr Preferred Name Vitamin A
|Image||Specimen Type||Specimen Volume||Tube Type|
||Blood (adult)||3 mL||SST with gel 8.5 mL (Dark Yellow Top)
||Blood (paediatric)||2 mL||2x SST with gel 600 uL Paed (Red or Yellow top)
||Blood (neonatal)||2 mL||2x SST with gel 600 uL Paed (Red or Yellow top)
APPLICATION: Suspected vitamin A deficiency in patients with malabsorption; suspected vitamin A toxicity, eg, inappropriate vitamin A therapy.
INTERPRETATION: Low levels are found with fat malabsorption. Dietary deficiency is very rare in developed countries.