Test Directory
4230 Vitamin B12 (Cyanocobalamin)
Specimen Type
Specimen Stability
Reference Range
Serum-SST
7 days 2-8° C
211-911 pg/mL
Specimen Requirements
Preferred amount: 1.0 mL Serum
Minimum amount: 0.5 mL Serum
Minimum amount: 0.5 mL Serum
Method
Immunochemiluminometric
Schedule
Mon-Sat
Turn-Around Time
24hrs; Also offered STAT at an additional charge
Instructions/Notes
Centrifuge required?: Yes
Clinical Utility
To help diagnose the cause of anemia or neuropathy (nerve damage); to evaluate nutritional status in some patients; to monitor effectiveness of treatment for B12 or folate deficiency.
CPT Codes
82607
