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False-positive nitrite results may occur when urine specimens have remained at room temperature for an extended period of time, allowing bacterial contaminants to multiply and produce measurable levels of nitrites. What bacteria cause nitrites in urine? The presence of nitrite may indicate the presence of E. coli or K. pneumonia;Read More →

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Urinary tract infections are the most common cause of nitrites in urine. These occur when bacteria infect the bladder, ureters, or kidneys. A doctor can easily diagnose a urinary tract infection (UTI) by testing a urine sample. Where do nitrites in water come from? Why Is It in My Water?Read More →