Vitamin B12

Alphabetical Test listing

Vitamin B12-272

  
Vitamin B12
  
272
  
82607.0
  
B12
  
Cyanocobalamin
  

Patient should be fasting 8-12 hours prior to collection of B12, however, non-fasting specimens will be accepted.

Fasting for a blood test

  
Serum
  
  
1.0 mL
  
0.5 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

  
Lithium heparin (Li hep) plasma
  
  

Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times to prevent clotting

  

Spin within two (2) hours of sample collection

  

Lt green plasma separator (PST)

  

Refrigerated (preferred) - 7 days

Frozen (OK)

  
  • Improper labels (unlabeled or mislabeled)
  • Hemolysis 
  • Improper anticoagulant or ratio
  • Delay in transport
  • Improper storage temperature affecting results
  • Improper container
  • Leaking container resulting in compromised specimen
  • Quantity not sufficient (QNS)
  
AHL - Immunology: Q
  
Mo - Fr
  
1 - 3 days
  

Carbonylmetallo Immunoassay (CMIA)

  

180 - 914 pg/mL

  
82607
  
11/30/2001
  
02/05/2020