The goals of nonoperative management of blunt renal injury are to avoid unnecessary nephrectomy, to limit renal function loss, and to manage associated complica tions such as urinary extravasation, infection, and, of course, bleeding. Accurate staging of urinary injuries provided by excellent imaging and the recognition that many patients can be successfully managed with observa tion alone have expanded the nonoperative approach, but official guidelines are not available yet.
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