The 2 common devices in use currently are the TEG 5000 (Haemonetics, Braintree, MA) and ROTEM Delta (Instrumentation Laboratory, Bedford, MA), shown in Figures 2A and recent versions of these analyzers, the TEG 6s and the ROTEM Sigma, use cartridgebased systems with dry reagents designed to improve both usability at point of care by nonlaboratorytrained personnel and interoperator ...