Study Formation of Ammonion-Magnesium Phosphate Crystals in Urine with Bacteria Growing / 现代检验医学杂志

ABSTRACT

Objective To study formation of ammonion-magnesium phosphate crystals in urine with bacteria growing and provide guidance for cilinical prevention of urinary calculi.Methods Bacterial culturefluid of Escherichia coli,Proteus mirabilis,Pseudomonas aeruginosa,Klevsiella pneumoniae,Enterococcus in urine was examined directly under the ultrahigh sensitive microscpcope system for ammonion-magnesium phosphate crystasl.The number of ammonion-magnesium phosphate crystasl was measured when the 24th and the 48th hour.Results Ammonion-magnesium phosphate crystasl were observed from the culture fluid without ammonion magnesium phosphate crystasl.The rate of male formation was higher than that of female.Ammonion-magnesium phosphate crystals in culture fluid of Proteus mirabilis was the highest,Pseudomonasaeruginosa was the second,the third was Klebsiella pneumoniae,and there was formed 1 case in 2 ml culturefluid of enterococcus,and 2 cases of formation in 5 ml culturefluid of Escherichia coli.The crystals formed were the most unformed feather crystals,followed by cubic and square cylinders,an d the envelope like crystals were the least.Conclusion Bacteria with urease play a significant role in ammonion-magnesium phosphate crystasl formed,Proteus mirabilis is the main pathlogen.