Methodology
Chemiluminescence Microparticle Immunoassay (CMIA)
Synonyms
B12; Cobalamin; Cyanocobalamin
Specimen Type
Serum or Plasma
Performing Lab
RCHSD Chemistry
Epic ID
LAB01465
Lab Test Days
Monday, Wednesday, Friday
Standard TAT
2-3 Days
Collection Information
Specimen Required
1-2 mL Blood
Container Type
Light Green (Lithium Heparin PST)
Collection Instructions
Serum collected in a (red top) tube or Serum Separator Tube (SST) are also acceptable. Protect from light.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK/Ambient-OK
Specimen Stability
Room Temp: 3 Days; Refrigerated: 7 Days; Frozen: 1 Month
Rejection Criteria
Hemolysis
Test Volume Required
1 mL Serum or Plasma
Minimum Test Volume
0.5 mL Serum or Plasma
Processing Instructions
Separate serum or plasma and give to Chemistry Monday, Wednesday and Friday. Place in refrigerator on Tuesday, Thursday and on weekends.
CPT Codes
82607
Revised
11-29-18
Initials
SL