Vitamin B12 Deficiency Cascade
Order Name
Vitamin B12 Deficiency Cascade
Test Number: 5194465
Revision Date 12/12/2022
Test Number: 5194465
Revision Date 12/12/2022
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Vitamin B12 Deficiency Cascade
|
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 3 mL (2 mL) | Serum | Clot Activator (SST or Red No-Gel) | Room Temperature |
| Instructions | Notes: 2 mL (Note: This volume Does NOT allow for repeat testing). Specimen Type: Red-top tube or gel-barrier tube Specimen Storage: Store specimen at room temperature Specimen Collection: If a red-top tube is used, transfer separated serum to a plastic transport tube. Special Instructions: Vitamin B12 testing is performed on all samples. If Vitamin B12 is <200 pg/mL: Intrinsic Factor Blocking Antibodies and Antipariental Cell Antibody (APCA) will be performed at an additional charge. If Vitamin B12 is between 200 and 400 pg/mL: Methylmaloni Specimen Stability: Ambient: 7 days, Refrigerated : 7 days, Frozen: 14 days |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 3-5 Days |
| Performing Labcorp Test Code | 141503 |
| CPT Code(s) | 82607 |
| Lab Section | Reference Lab |