Vitamin A
Test Mnemonic
VITA
CPT Codes
- 84590 - QTY (1)
LOINC ®
2923-1
Aliases
- Retinol
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Plasma | Lavender EDTA No Light | Frozen | Protect specimen from light. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Serum | SST (Gold) | Frozen | Protect specimen from light. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 24 hours |
| Refrigerated | 1 week |
| Frozen | 1 year |
Days Performed
3 days per week
Turnaround Time
1 - 6 days
Methodology
| Name | Description |
|---|---|
| High Performance Liquid Chromatography (HPLC) |
Reference Range
| Vitamin A | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Months | 1 Months | Normal | 0.18 - 0.50 | mg/L | 2 Months | 12 Months | Normal | 0.20 - 0.50 | mg/L | 1 Years | 12 Years | Normal | 0.20 - 0.50 | mg/L | 13 Years | 17 Years | Normal | 0.26 - 0.70 | mg/L | 18 Years | 99 Years | Normal | 0.30 - 1.20 | mg/L |
Special Info
Patient preparation: 12-hour fast prior to collection.
Clinical Info
Malabsorption test; vitamin A toxicity; vitamin A deficiency