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Folate; vitamin B12
This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H, or coenzyme R). It is recommended to ask all patients who may be indicated for this test about biotin supplementation. Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.
Within 1 day
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
0.6 mL (Note: This volume does not allow for repeat testing.)
Red-top tube or gel-barrier tube
If red-top tube is used, transfer separated serum immediately to a plastic transport tube.
Electrochemiluminescence immunoassay (ECLIA)
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|000810||Vitamin B12 and Folate||001503||Vitamin B12||pg/mL||2132-9|
|000810||Vitamin B12 and Folate||002020||Folate (Folic Acid), Serum||ng/mL||2284-8|
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