|Description||Determination of insulin levels, along with proinsulin and C-peptide measurements, may be useful in the diagnosis of insulinoma. The assay may also be used in the management of diabetes mellitus.
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.
NOTE: This test is intended for adult patients only.
|Specimen||Draw blood in either a plain, red-top tube or serum gel tube from a fasting patient. Spin down and send 1.0 mL (minimum volume: 0.25 mL for pediatric patients - no repeats) of serum frozen in plastic vial. Frozen specimen preferred, but refrigerated is acceptable. Insulin is stable for 24 hours at 2 - 8° C.
|Reference Values||2.6 - 24.9 ľU/mL
NOTE: Reference ranges are for adult and fasting specimens only.
|Analytic Time||1 Day|
|Day(s) Test Set Up||Monday through Sunday|