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HelpTest Code VIT B12 VITAMIN B12
Patient Preparation
Fasting recommended
Collection Method
Venous collection
Minimum Volume
1.0 mL
Container
Lt Green / Plasma Separator / Lithium Heparin
Preferred Specimen
Light Green Top (lithium heparin) plasma
Acceptable Specimen(s)
Serum:
-Gold Top SST
-Red Top
Plasma:
-Lt Green top (lithium heparin)
Reference or Target Ranges
|
Normal: |
211 – 911 pg/mL |
|
Deficient: |
32 – 246 pg/mL |
Reportable Units
pg/mL
Critical Value
Not defined for this assay
Reasons for Rejection
|
Hemolysis Threshold: |
150 mg/dL |
|
Icterus Threshold: |
20 mg/dL (conjugated) |
|
|
20 mg/dL (unconjugated) |
|
Lipemia Threshold: |
3000 mg/dL |
|
Other: |
QNS, contaminated, improperly labeled, improper specimen type |
Specimen Stability
|
Ambient |
< 8 Hours |
|
Refrigerated |
48 Hours |
Performance Information
|
Days and Time Performed |
24/7 |
|
Expected Turn Around Time |
Stat: 1 Hour, Routine: 4 Hours |
|
Stat Availability |
Yes |
|
Performing Bench |
CRMC Chemistry |
|
Methodology/Method Description |
Atellica |
Methodology/Method Description
Atellica CH Analyzer
CPT Codes
82607