|Description||Useful in diagnosis of folic acid deficiency and other deficiency disorders that cause anemia.
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.
|Specimen||Draw blood in either a plain, red-top tube or serum gel tube. (HEMOLYZED SPECIMEN IS NOT ACCEPTABLE.) Spin down, separate and send 1.0 mL (minimum volume: 0.5 mL) of serum refrigerated in plastic vial. PROTECT SPECIMEN FROM PROLONGED EXPOSURE TO LIGHT.|
|Reference Values||4.8 - 20.0 ng/mL|
|Analytic Time||1 Day|
|Day(s) Test Set Up||Monday through Sunday|