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HelpTest Code LAB580 Vitamin A
Clinical System Name
Vitamin A Level
Synonyms
Retinol
Vit A
Sample Requirements
Specimen: Whole blood
Container(s): Gold SST, Red, Dark Green/Sodium Heparin, Lt. Green/Lithium Microtainer, Gold Microtainer
Preferred Vol: 1.0 mL
Minimum Vol: 0.5 mL
Note: Protect sample from light by wrapping with paper towel and securing with one piece of tape.
Processing Instructions
Reject due to:
Spin: Y
Aliquot: Y
Temp: -20 C
Storage location: Transfer 0.5 mL serum/plasma to amber plastic aliquot tube. Freeze in CPA freezer, Fz4 rack.
Off-site collection: Protect sample from light by wrapping with foil. Avoid hemolysis. Spin blood, send serum/plasma frozen
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| serum/plasma protected from UV light | Room temp | 3 d |
| Refrigerated | 7 d | |
| Frozen | 1 m |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | M, reported T | up to 7 D |
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Chemistry
Location: Chem West
Phone Number: (206)987-2617
CPT Codes
84590
Methodology
Method: LC-MS/MS
Analytical Volume: 0.25 mL
Limitations:
Reference Range
| Age | mcg/L |
|---|---|
| 0-6 Years | 113 - 647 |
| 7-12 years | 128 - 812 |
| 13-17 years | 144 - 977 |
| >18 Years | 325 - 780 |