Test Directory

Vitamin A

Orange Cap	Volume Range 1.0 ml Additive per Container Lithium-heparin (non-gel)
Red/Pink Cap	Volume Range 1.0 ml Additive per Container Potassium EDTA

Orange Cap - Paediatric	Volume Range 1.00 ml Additive per Container Lithium-heparin

<2yrs: 0.5 - 1.5 µmol/L

2 - 6 yrs: 0.7 - 1.5 µmol/L

6 - 12 yrs: 0.9 - 1.7 µmol/L

12 - 18 yrs: 0.9 - 2.5 µmol/L

>18 yrs: 1.0 - 3.0 µmol/L

Subclinical state (at risk of deficiency): 0.8 - 0.9 µmol/L

Clinical deficiency likely: ≤0.7 µmol/L

Risk of toxicity: >4.5 µmol/L

Glasgow Royal Infirmary

84 Castle Street
Glasgow
G4 0SF

Telephone: 0141 211 4000

Protect sample from light.

Fasting sample or 8 hours after supplementation is recommended.

28 days

Vitamin A & E measured on same sample.