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VITAMIN A (RETINOL)
Number 573
CPT Code 84590
Alias RETINOL
Specimen Container SST
Specimen Type Serum
Turn Around Time 
Days Performed 
Reference Range 18-77 ug/dL
Alternate Specimen Red Top
Volume 1 mL Serum
Stability Ambient 7 Days
Stability Refrigerated 7 Days
Stability Frozen 7 Days
Patient Preparation 
Methodology 

High-pressure liquid chromatography (HPLC)

Limitations 
Rejection Criteria 

Specimen not protected from light; hemolysis

Additional Instructions 

Protect from light

Performing Laboratory Reference Laboratory
TagsRETINOL