Unfortunately, most of the guidelines related to the details of management of acute pancreatitis are extrapolated from the adult literature. There is only limited data regarding management of acute pancreatitis in children. Recently, Wu et al. have shown compelling data that suggest the choice of fluid for management of acute pancreatitis in adults should be Lactated Ringers (LR). Their group demonstrated in a small randomized controlled trial involving 40 adult patients with acute pancreatitis, that the patients randomized to the LR arm of the study had significantly lower levels of C-reactive protein and Systemic Inflammatory Response Syndrome (SIRS) markers compared with controls in the normal saline (NS) group. They proposed that the mechanism for this difference may be related to the more balanced pH of LR which might prevent, or at least further buffer, the systemic inflammation that is triggered by the release of the offending cytokines from the pancreas. Currently, both LR and NS are used at both Children's Hospital of The King's Daughters (CHKD) and Children's National Health System (CNHS) at the discretion of the attending physician as the standard of care for acute pancreatitis. The investigators hope to examine the question of ideal fluid choice for fluid resuscitation in children with acute pancreatitis by assessing recovery time in the context of measured inflammatory markers and SIRS status at 24 and 48 hours after admission.