[Assessing the incidence of asymptomatic bacteriuria in pregnancy by means of the Dornfest method as a screening test].

In a study to assess the incidence of asymptomatic bacteriuria in pregnancy, as determined by the Dornfest method of urine examination, results proved to be positive in 7% of patients. Of these patients 28% developed acute pyelonephritis during pregnancy. The Dornfest method can be used successfully as a screening test for asymptomatic bacteriuria at antenatal visits and the necessary treatment can be instituted, lowering the incidence of acute pyelonephritis, a condition which remains the most frequent cause for admission to hospital of a pregnant patient.