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Test Code FOB12 VITAMIN B12 AND FOLATE, SERUM

Performing Laboratory

NorDx Laboratories

Useful For

Detecting deficiencies associated with macrocytic anemias

Includes B12 and folate determination

Clinical Significance

No sample should be collected on patients receiving therapy with high biotin doses (i.e. biotin therapy for Multiple Sclerosis or oncology patients; skin, hair and nail supplements, or multivitamins containing > 5 mg/day) until at least 12 hours after the last biotin administration. If unsure, or if the clinical picture does not fit the results please contact the laboratory . We have methods to check for biotin interference as well as for any other interferences and for the accuracy of the results.

Biotin interference would falsely increase the result of this assay.

Method Name

Electrochemiluminescent Immunoassay (ECLIA)

Reference Values

VITAMIN B12:

211-946 pg/mL

FOLATE:

4.8 – 20.0 ng/mL

Days and Times Test Performed

Monday through Sunday

Report Available

1 Day

Profile Information

Individual Test Description

FOLATE, SERUM
VITAMIN B12 ASSAY, SERUM

Specimen Type

Serum

Preferred Container

Serum Separator Tube (SST)

Preferred Volume

Serum: 1 mL (Serum Separator Tube (SST))

Minimum Volume

Serum: 0.5 mL (Serum Separator Tube (SST))

Specimen Collection and Handling

Spin specimen, separate from clot and send refrigerated in plastic vial.

Rejection Information

Hemolyzed specimen is not acceptable.

Specimen Stability Information

Specimen Type: Serum

Frozen: 1 Month

Refrigerated: 2 Days

Must be spun/separated within: 2 Hours

Note: Avoid prolonged exposure to light (Normal storage in walk-in refrigerator at Scarborough facility is acceptable).

Add On Capable

Yes

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code

CPT Description

CPT Disclaimer

82607 Cyanocobalamin (Vitamin B-12), Quantitative  
82746 Folic Acid, Serum, Quantitative  

Acceptable Alternative Container(s)

Red Top Tube

Keywords

B12 ASSAY

COBALAMIN

CYANOCOBALAMIN

FOLATE

FOLIC ACID

PTEROYLGLUTAMIC ACID

VITAMIN B12

Performing Laboratory Location

NorDx Laboratories