Riboflavin
9 days
High-pressure liquid chromatography (HPLC) with fluorescence detector
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Riboflavin test. Assesses for deficiency in malnutrition.
Whole Blood, protected from light
0.5 mL
EDTA (lavender top) whole blood, preferred. Also acceptable are lithium heparin (green-top) whole blood and sodium heparin (light green-top) whole blood.
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Protected from light
| Temperature | Period |
|---|---|
| Frozen | 7 days |