Vitamin B12-272

Test info

  
Vitamin B12
  
272
  
82607.0
  
B12
  
Cyanocobalamin

Specimen

  

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
  

Lt green plasma separator (PST)

Red serum vial/tube, 5 mL

 

Red serum vial/tube, 10 mL

Red/grey serum separator (SST) vial/tube, 10 mL

  

Lt green:

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

  

Lt green:

Spin within two (2) hours of sample collection

Red:

  1. Allow sample to clot
  2. Spin
  3. Transfer serum to a False bottom plasma/serum transport vial/tube (AHL), labelled as serum, within two (2) hours of sample collection
  

Lt green plasma separator (PST)

False bottom plasma/serum transport vial/tube (AHL)

Red/grey serum separator (SST) vial/tube, 10 mL

  

Refrigerated (preferred) - 7 days

Frozen (OK, one time)

  
  • 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)

Performance

  
AHL - Immunology: Q
  
Mo - Fr
  
1 - 3 days
  

Carbonylmetallo Immunoassay (CMIA)

Clinical and Interpretive info

  

180 - 914 pg/mL

Billing

  
82607

Tracking

  
11/30/2001
  
02/02/2022
  
11/19/2021