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Laboratory Test Detail

Last Updated: April 25, 2024 @ 9:13 am

2140

Vitamin B12 and Folate

Specimen:Collect:
  • One SST

Also Acceptable:
  • One Red Top
Submit:
  • 1 mL (Min:0.5 mL) Serum . Submit Refrigerated.
Special Handling:
  • Allow specimen to clot completely at room temperature
  • Avoid Repeated Freeze/Thaw Cycles
  • Fasting Specimen is Preferred
  • Minimize air exposure
  • Protect from Light
  • Separate from cells ASAP
  • 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.
Rejection Criteria:
  • Heat inactivated
  • Hemolyzed specimens
  • Specimen not protected from light
Stability:Ambient: 2 Hour(s); Refrigerated: 2 Day(s); Frozen: 1 Month(s); Incubated: Unacceptable
Methodology:
  • Electrochemiluminescence Immunoassay (ECLIA)
Performed:Mon-Fri
Reported:1-3 Day(s)
CPT Codes:
  • 82607
  • 82746
Interpretive Data:Please see report for interpretive data.

Biotin in specimens taken from patients on high-dose biotin therapy or supplements may intefere with at least one test in this panel 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 taken until at least 8 hours after the last biotin administration.
Components:
  • 2126 - VITAMIN B12
  • 2127 - FOLATE
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