Wong C, et al. - Researchers aimed at determining the accuracy of point-of-care ultrasound (POCUS) for the diagnosis of nephrolithiasis. They also assessed its prognostic value in the management of renal colic. They analyzed all studies of adult Emergency Department patients with renal colic symptoms and considered any degree of hydronephrosis as a positive POCUS finding. Observations suggest that for diagnosing nephrolithiasis, point-of-care ultrasound has modest diagnostic accuracy. For the presence of any stone, the finding of moderate or severe hydronephrosis is highly specific. The presence of any hydronephrosis is suggestive of a larger (>5 mm) stone in those presenting with renal colic.