Centralized Core Laboratory:Chemistry
Red top (no anticoagulant) tube
1.5 mL (minimum 0.5 mL)
Sent to reference lab
Homogeneous automated immunofluorescent assay using Time-Resolved Amplified Cryptate Emission (TRACE) technology.
Spin down and remove serum from clot. do not submit in original tube.
Proton pump inhibitor drugs should be discontinued for at least 2 weeks before collection
Reference range: <93 ng/mL
(Reference values apply to all ages)