The eplex BCID-GN Control M326 is intended for use as an external positive and negative quality control to monitor the performance of in vitro laboratory nucleic acid testing procedures for the qualitative detection of gram-negative pathogens. The eplex BCID-GN Control M326 is composed of synthetic DNA specifically designed for and intended to be used solely with the cobas eplex blood culture identification gram-negative (BCID-GN) panelperformed on the cobas eplex system (Roche Diagnostics). eplex BCID-GN Control M326 is composed of 4 controls, eplex BCID-GN Positive A, eplex BCID-GN Positive B, eplex BCID-GN Positive C and eplex BCID-GN Negative. eplex BCID-GN Control M326 is comprised of 12 tubes, 3 tubes of each positive control, A, B and C, and 3 tubes of negative control, 50μL each.