4420

Test CODE NAME

4420

Vitamin A (Retinol), Serum or Plasma

Methodology: Quantitative High Performance Liquid Chromatography
Performed: Mon-Fri
Reported: 3-5 days
Specimen Required: Patient Preparation: Patient should fast for 12 hours and abstain from alcohol for 24 hours prior to collection. 
Collect: Green (sodium or lithium heparin) OR Serum Separator Tube (SST) OR Red Top Tube - 0.5 ml plasma or serum.
Specimen Preparation: Separate serum or plasma within 1 hour of collection. Transfer 1 mL serum or plasma to a Standard Amber Transport Tube.
Storage/Transport Temperature: Refrigerated. 
Unacceptable Conditions: Whole blood; Not Protected from Light; Not Refrigerated or Frozen.
Stability: After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 1 month
NOTE: * This test is not available for New York patients, please refer to test code 1022 for specimen requirements.*
Performing Laboratory
Accu Reference Medical Laboratory
CPT Code(s): 84590