-  Before the test check urine sterility with culture. The examination must be done in an "aseptic" bladder.

-  A similar condition can be asumed if the patient is under antibiotics as a preventive measure.

References:

1  Orellana P et al. Reflujo Vesicoureteral, p: 419-424 in: Medicina Nuclear Aplicaciones Clínicas. Eds: I. Carrio - P. González. Editorial Masson, Barcelona España, 2003.

2  Mandell G. A. et al., Procedure Guideline for Radionuclide Cystography in Children 2.0; p: 151-156;. Society Of Nuclear Medicine Procedure Guidelines Manual 2001-2002