Vitamin A (Retinol), Plasma or Serum VITA
| Method(s) | Quantitative High Performance Liquid Chromatography | |||||||||
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| Specimen Required | ||||||||||
| Collect | One 3 mL green (sodium or lithium heparin) or one gold (SST) top tube. Also acceptable: lavender EDTA |
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| Transport | 1 mL plasma or serum, refrigerated (Min: 0.2 mL). Separate serum/plasma from cells within one hour of collection. |
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| Stability | After separation from cells: Ambient: Unacceptable; Refrigerated: 1 month; Frozen: 1 year | |||||||||
| Schedule | Daily | |||||||||
| Billing Code | 5010221 | |||||||||
| CPTCode | 84590 | |||||||||
| Notes | Patient should fast 12 hours and abstain from alcohol for 24 hours prior to collection. Avoid Hemolysis. | |||||||||
| Preferred Specimen Collection Device(s) | ||||||||||
| Reference Interval | ||||||||||
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