Sign in →

Test Code LAB580 Vitamin A

Clinical System Name

Vitamin A Level



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: Protect sample from light by wrapping with paper towel and securing with one piece of tape. 


Processing Instructions

Reject due to

Spin: Y

Aliquot: Y

Temp: -20 C

Storage location: Transfer 0.5 mL serum/plasma to amber plastic aliquot tube. Freeze in CPA freezer, Fz4 rack. 


Off-site collection: Protect sample from light by wrapping with foil. Avoid hemolysis. Spin blood, send serum/plasma frozen


Specimen Type Temperature Time
serum/plasma protected from UV light Room temp 3 d
  Refrigerated 7 d
  Frozen 1 m



STAT Performed TAT
N M, reported T up to 7 D


Performing Laboratory

Seattle Children's Laboratory    



Department:  Chemistry

Location: Chem West

Phone Number: (206)987-2617

CPT Codes



Method: LC-MS/MS

Analytical Volume: 0.25 mL


Reference Range

Age mcg/L
0-6 Years 113 - 647
7-12 years 128 - 812
13-17 years 144 - 977
>18 Years 325 - 780