Casandra
Casandra Test Code QD66137Version 1 (DRAFT)
Performing Lab
Lab Quest DiagnosticsLab Test ID 10194
Micronutrient, Vitamin B12
Clinical Use
Order TestUse
Measures the level of vitamin B12 (cobalamin), an essential nutrient necessary for red blood cell production, DNA synthesis, and maintaining a healthy nervous system; used to identify vitamin B12 deficiency which may result from limited dietary intake, poor absorption, aging, medications, or certain health conditions.
Special Instructions
No special preparation is required; this test may be performed at a Quest Diagnostics Patient Service Center or via Quest Mobile® where available; purchaser must be 18+, patient ages 10‑100.
Limitations
Not provided.
Test Details
Methodology
Not provided.
Biomarkers
Vitamin B12 (cobalamin)
AnalyteVitamin B12 • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
Not provided.
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
Not provided
Minimum Volume
Not provided
Patient Preparation
No special preparation is required.