ARUP's Laboratory Test Directory

Vitamin B12 & Folate : 0070160

Mnemonic: B12/FOL

Methodology: Chemiluminescent Immunoassay
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect:  One 4 mL serum separator tube.

Transport:  2 mL serum, frozen.  (Min: 0.5 mL)  Submit specimen in an ARUP Amber Transport Tube. Protect from light.

Pediatric Collection/Transport:  0.4 mL serum, frozen.

Remarks:  Allow serum to clot completely at room temperature before centrifuging.  Protect from light during collection, storage, and shipment.

Stability:  After separation from cells: Ambient: 8 hours; Refrigerated: 2 days; Frozen: 3 months
Reference Interval:
 
Test Number Components Reference Interval
0070150Vitamin B12 210-911 pg/mL
0070070Folate, Serum 0-3.3 ng/mL: Deficient
3.4-5.3 ng/mL: Indeterminate
5.4-40.0 ng/mL: Normal                

CPT Code(s): 82607 Vitamin B12; 82746 Folate, serum
 
 

 

 

 
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