INJECTED EITHER BY THE INTRAVENOUS OR INTRAMUSCULAR ROUTE, AND ITS APPEARANCE AT THE URETERAL ORIFICES IS WATCHED WITH THE CYSTOSCOPE IN PLACE.
THE INTRAVENOUS METHOD IS PREFERRED BECAUSE A 5 ML INJECTION IS SUFFICIENT.A LESSER DOSAGE IN INFANTS, CHILDREN AND UNDERWEIGHT PATIENTS WILL PREVENT SKIN COLORATION.