... biochemical marker to support, or exclude, the diagnosis of infection The host response to bacterial infection involves the activation of complex immune mechanisms and the release of a wide array of inflammatory ... is not a better marker of bacterial infection than CRP in adult ED patients, but it is a useful marker of the severity of infection An elevated CRP level in ED patients has a high PPV for infection, ... Nursing Specialists Ms Yu-Mei Chang, Shu-Chin Tsai, Mei-Chuang Chang, and Li-Ling Lin for their help, and thank Mr Jackson Lin and Level Biotech Co for technical assistance and support Dr Chan,...