0070160
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Vitamin B12 and Folate

B12/FOL
Example Reports
Abnormal
Normal

Ordering Recommendation

Aids in the detection of vitamin B12 or folate deficiency in individuals with macrocytic or unexplained anemia, or unexplained neurologic disease.

New York DOH Approval Status

This test is New York state approved.

Specimen Required

Patient Preparation
Collect

Serum separator tube. Also acceptable: Green (sodium or lithium heparin).

Specimen Preparation

Protect from light during collection, storage, and shipment. Allow serum to clot completely at room temperature before centrifuging. Transfer 2 mL serum or plasma to an ARUP Amber Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature

Frozen.

Unacceptable Conditions

EDTA plasma. Hemolyzed or refrigerated specimens exposed to light for more than 24 cumulative hours.

Remarks
Stability

After separation from cells: Ambient: 2 hours; Refrigerated: 8 hours; Frozen: 3 months

Methodology

Quantitative Chemiluminescent Immunoassay (CLIA)

Performed

Sun-Sat

Reported

Within 24 hours

Reference Interval

Test Number
 Components
 Reference Interval
  Folate, Serum Greater than or equal to 5.9 ng/mL
  Vitamin B12 180-914 pg/mL

Interpretive Data




Folate, Serum Less than or equal to 3.9 ng/mL : Deficient
4.0-5.8 ng/mL : Indeterminate
Greater than or equal to 5.9 ng/mL : Normal

Compliance Category

FDA

Note

Hotline History

N/A

CPT Codes

82607; 82746

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Components

Component Test Code* Component Chart Name LOINC
0070070 Folate, Serum 2284-8
0070150 Vitamin B12 2132-9
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • B12 & Folate
  • B12/Folate, Serum
  • Folate & Vitamin B12
  • Folate and Vitamin B12
  • Folic Acid
  • Vitamin B9
Vitamin B12 and Folate