|Last Updated: March 21, 2019 @ 9:13 am|
|Stability:||Ambient: 4 Hour(s); Refrigerated: 1 Day(s); Frozen: 1 Month(s); Incubated: Unacceptable|
|Interpretive Data:||General Reference Range : 1.1-4.4 ng/mL|
Biotin in specimens taken from patients on high-dose biotin therapy or supplements may intefere with this test and cause inaccurate test results. It is recommended that for patients receiving therapy with high biotin doses (> 5 mg/day), no laboratory test specimen should be collected until at least 8 hours after the last biotin administration.