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Use of Intravenous Urography

Studies on 1,476 intravenous urographic examinations done in a 15-month period showed that the proportion of abnormal results varied widely—from 20% in patients with abdominal pain other than renal colic to 92% of those in prostatism. Patients with the strongest clinical evidence of haematuria were the most likely to have abnormal urograms, and to undergo cystoscopy with abnormal findings on this examination. All six patients with renal hypertension showed abnormalities other than on the urogram. Prior use of other tests may increase the effectiveness of urography.