Alkaline urine promotes the precipitation of phosphate, calcium, and magnesium.

碱性的尿液将促进磷酸盐、钙、镁的沉积。

Calcium oxalate crystals are more likely to form in acidic urine, whereas calcium phosphate crystals are more likely to form in alkaline urine.

草酸钙结晶易形成于酸性尿中，而磷酸钙结晶易形成于碱性尿中。

For UTIs, the urinalysis shows an alkaline urine pH above 7; pyuria, which means white blood cells in the urine; and bacteriuria, which means bacteria in the urine.

尿液pH值大于7、脓尿（即尿液中存在白细胞）、菌尿，可以诊断尿路感染。