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Vitamin B12 Level (B12)

Message
Do not use samples that have been stored at room temperature for longer than 8 hours. Freeze samples if longer than 48 hours refrig.


Test Code
B12


Preferred Specimen
1 mL Serum, Li Heparin, or EDTA plasma


Instructions
"Minimum specimen requirement 0.5ml
Testing Frequency: Daily"


Transport Container
SST


Transport Temperature
Refrigerate


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Stability: No longer 8 hrs RT,refrig 48 hrs,beyond 48 hrs freeze


Methodology
Chemilumimescence

Reference Range
"M Up to 199 Years 211 - 911 pg/mL
M Up to 199 Years 254 - 1320 pg/mL
M Up to 199 Years 254 - 1320 pg/mL
M Up to 199 Years 211 - 911 pg/mL
F Up to 199 Years 254 - 1320 pg/mL
F Up to 199 Years 211 - 911 pg/mL
F Up to 199 Years 254 - 1320 pg/mL
F Up to 199 Years 211 - 911 pg/mL"




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.