Kornblith AE, Graf J, Addo N, et al. - This study was intended to ascertain the independent correlations of physical examination, laboratory studies, and focused assessment with sonography for trauma (FAST) with identification of intra‐abdominal injury (IAI) in children, and to compare the test characteristics of these diagnostic variables. researchers examined a large trauma database of all children with blunt torso trauma presenting to a freestanding pediatric emergency department during a 20‐month period. The logistic regression was applied to assess the correlation of FAST, physical examination and selected laboratory data with IAI in children, and correlated the test characteristics of these variables. There were 354 children who were examined in this study. The study suggested that FAST and physical examinations each predicted the identification of IAI in children. Nevertheless, the combination of the two (exFAST) had greater sensitivity and negative predictive value compared with either physical examination or FAST alone. In children with blunt torso trauma, this supports the use of exFAST in refining clinical predication rules.