<qa>  What isotonic crystalloids are included in the surviving sepsis campaignThe surviving sepsis campaign guideline recommended the isotonic crystalloids as the first choice of initial fluid resuscitation. The isotonic crystalloids are including chloride-rich solution eg.NSS and balanced salt solution. Retrospective study showed normal saline can induced hyperchloremic metabolic acidosis and acute kidney injury. However, no randomized controlled trial compare efficacy between the balanced salt solution and chloride rich solution. 