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Vitamin A
Test CodeLAB580
CPT Codes
84590
Preferred Specimen
Red no-additive no gel
Minimum Volume
0.7 mL
Instructions
Separate from cells as soon as possible after clotting. Send serum in an amber tube. If amber tube is not available, wrap tube in aluminum foil to protect from light.
Transport Temperature
Refrigerated
Specimen Stability
Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Methodology
High Performance Liquid Chromatography (HPLC)