91226      Vitamin A
Specimen:
  Collect: One 4 mL Green Top (Li Heparin)

Also Acceptable
One 7.5 mL SST 
  Submit: 1 mL (Min:0.3 mL) Plasma. Submit Refrigerated. Submit in a Standard Transport Tube.

Also Acceptable
1 mL (Min:0.3 mL) Serum. Submit Refrigerated. Submit in a Standard Transport Tube. 
  Special Handling: Protect from Light
Draw specimen following an overnight (12-hour) fast. Patient should not consume alcohol for one day prior to blood draw. 
  Rejection Criteria: Hemolyzed specimens 
  Stability: Ambient: Unacceptable; Refrigerated: 1 Month(s); Frozen: 12 Month(s); Incubated: Unacceptable 
Methodology: High performance liquid chromatography (HPLC) 
Performed: Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday 
Reported: 2-4 Day(s) 
CPT Codes:
84590 - Vitamin A
Interpretive Data: Please see report for interpretive data.
Components:
93212 - VITAMIN A93220 - INTERPRETATION:
93221 - RETINYL PALMITATE