Vitamin A, blood

Alphabetical Test listing

Vitamin A, blood-13354

  
Vitamin A, blood
  
13354
  
LAB13354
  
VTA
  
A, vitamin
Retinol
  

Differential diagnosis of hypervitaminosis A. A combination of a low serum carotene level and a low vitamin A suggests inadequate vitamin A nutrition.

  
Serum
  
  
0.8 mL
  
0.4 mL
  

Immediately following collection, thoroughly mix sample by gently inverting 5 times

  
  1. Allow sample to clot for a minimum of 30 minutes
  2. Spin within two (2) hours of sample collection
  

Gold serum separator (SST) tube

  
  
  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum, within two (2) hours of sample collection
  
  

Ambient (preferred) - 7 days

Refrigerated - 14 days

Frozen - 14 days

  
  • Sample type other than serum received
  
LabCorp Burlington (017509): R-LC
  
Daily
  
3 - 5 days
  

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

  

0 to 30 days: Not established
1 mo to 5 yrs: 
6 to 11 yrs:  μg/dL
12 to 19 yrs:  μg/dL
20 to 39 yrs:  μg/dL
40 to 59 yrs:  μg/dL
>59 yrs:  μg/dL

 Age  Range in μg/dL
 0 - 30 days  Not established
 1 mo - 5 years  14.4 − 42.6
 6 - 11 years  18.2 − 45.7
 12 - 19 years  18.8 − 54.9
 20 - 39 years  18.9 – 57.3
 40 - 59 years  20.1− 62.0
 >59 years  22.0 − 69.5
  
84590
  
Result 2923-1
  
04/11/2019
  
11/15/2019