Specimen:
Collect
- One SST
Also Acceptable:
- One Green Top (Na Heparin)
- One Lavender (EDTA)
- One Pink Top (EDTA)
- One Red Top
Submit
- 1 mL (Min:0.5 mL) Serum . Submit Refrigerated.
Also Acceptable:
- 1 mL (Min:0.5 mL) Plasma . Submit Refrigerated.
Special Handling
- Fasting Specimen is Preferred
- For patients receiving therapy with high biotin doses (>5 mg/day), no laboratory test specimen should be collected until at least 8 hours after the last biotin administration.
- Minimize air exposure
- Protect from Light
- Separate from cells within 2 hours of collection
- SST collection stable for 24 hours.
Rejection Criteria
- Grossly Hemolyzed Samples
- Heat inactivated
Stability
Ambient: 2 Hour(s); Refrigerated: 2 Day(s); Frozen: 2 Month(s); Incubated: Unacceptable
Methodology
- Electrochemiluminescence Immunoassay (ECLIA)
Performed
Mon-Fri
Reported
1-3 Day(s)
CPT Codes
- 82607
Interpretive Data
General Reference Range : 232-1245 pg/ml
Biotin in specimens taken from patients on high-dose biotin therapy or supplements may intefere with this test and cause inaccurate test results. It is recommended that for patients receiving therapy with high biotin doses (> 5 mg/day), no laboratory test specimen should be collected until at least 8 hours after the last biotin administration.
Biotin in specimens taken from patients on high-dose biotin therapy or supplements may intefere with this test and cause inaccurate test results. It is recommended that for patients receiving therapy with high biotin doses (> 5 mg/day), no laboratory test specimen should be collected until at least 8 hours after the last biotin administration.
Components
- 2126 - VITAMIN B12
Last Updated: April 22, 2025 @ 9:13 am
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