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7065: Vitamin B12 and Folate Print View
Folate, Serum IA  view ref range  ng/mL 
Vitamin B12, Serum IA  < 5 years: Call Client Services
< 10 years: 250 - 1205
< 18 years: 260 - 935
>= 18 years: 200 - 1100 
pg/mL 

PRIMARY
1 Serum 2 (1) mL   Refrigerated - 7 Day(s)/Frozen - 21 Day(s)/Room Temperature - 24 Hour(s)  
ALTERNATE

Folic acid deficiency is common in pregnant women, alcoholics, patients with diets that do not include raw fruits and vegetables, and people with structural damage to the small intestine. The most reliable and direct method of diagnosing folate deficiency is the determination of folate levels in both erythrocytes and serum. Low folic acid levels, however, can also be the result of a primary Vitamin B12 deficiency that decreases the ability of cells to take up folic acid. Vitamin B12 is decreased in pernicious anemia, total or partial gastrectomy, malabsorption and certain congenital biochemical disorders.

Note: Send serum in an amber tube. If amber tube is not available,
wrap tube in aluminum foil to protect from light.
See also Megaloblastic Anemia AssessRT, #4994
Setup Schedule
Sunday-Saturday

Reported (Analytical Time)
Same day

CPT Codes
82607,82746

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Transport Temperature: Refrigerated Reject Criteria: Hemolysis Please Note: Although the reference range for vitamin B12 is 200-1100 pg/mL, it has been reported that between 5 and 10% of patients with values between 200 and 400 pg/mL may experience neuropsychiatric and hematologic abnormalities due to occult B12 deficiency; less than 1% of patients with values above 400 pg/mL will have symptoms.






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