[Detection of kidney stones - Imaging and laboratory chemistry including urine analysis]

Detection of kidney stones - Imaging and laboratory chemistry including urine analysis Abstract. Nephrolithiasis is often the first manifestation of renal colic. This is usually caused by ureteral stones, but also by blood clots, lost papillary necrosis, tumor-related ureteral stenosis or urogenital TB. Today, kidney stones are primarily detected by ultrasound. Although the CT examination without contrast agent is also highly sensitive, because of the radiation exposure, it is only recommended if the findings are unclear. In addition to a careful anamnesis, supplementary diagnostics with urine tests (hematuria and crystalluria, possibly 24-hour urine collection) and serological determinations (creatinine, sodium, potassium, calcium, uric acid, inorganic phosphorus) are important.