Stability of blood analytes after storage in BD SST (TM) tubes for 12 mo

ArticleinClinical biochemistry 42(16-17):1732-4 · August 2009with76 Reads
Impact Factor: 2.28 · DOI: 10.1016/j.clinbiochem.2009.07.015 · Source: PubMed


    Objectives: We studied the stability of 33 analytes related to clinical chemistry, bone, and vitamin metabolism, after storage in serum separator tubes (SST (TM)). Design and methods: Blood was collected from 6 subjects using SST tubes. Some serum remained in the tube in contact with the barrier gel and was stored at -80 degrees C for 12 mo. Results: Clinically significant changes Occurred only in 1,25-dihydroxyvitamin D and retinol-binding protein. Conclusions: Freezing SST tubes before sample analysis is a viable option for some analytes.