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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: Sample is NOT affected by exposure to normal indoor fluorescent light.
However, exposure to UV light (such as sunlight) can affect results. Sample may be protected from by wrapping with paper towel and securing with one piece of tape, or wrapping in foil, or aliquoting serum/plasma to an amber plastic aliquot tube.
Processing Instructions
Reject due to:
Spin: Y
Aliquot: Y
Temp: -20 C
Storage location: Transfer 0.5 mL serum/plasma to plastic aliquot tube. Freeze in CPA freezer, Fz4 rack.
Off-site collection: 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
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 |
CPT Codes
84590