Nitrite plus sign in urine test means urine nitrite is positive, may suffer from pyelonephritis, urinary tract infection and other disease risks.
The result of nitrite plus sign in urine test means that urine nitrite is positive, normally urine nitrite should be negative, and positive urine nitrite is mainly seen in pyelonephritis caused by Escherichia coli, but also in urinary tract infection, cystitis and bacteriuria caused by Escherichia coli and other Enterobacteriaceae bacteria.
Nitrite test can be used to initially indicate whether the body has the possibility of urinary tract infection through the value of the content of nitrite in the urine. Since Enterobacteriaceae bacteria such as Escherichia coli have the ability to reduce nitrate, when Enterobacteriaceae bacteria cause urinary tract infections, they elevate nitrite, which is then excreted through the urine, resulting in a positive urinary nitrite.
It should be noted that if the specimen is contaminated or placed for too long, it may lead to false-positive test results, so a positive urinary nitrite is not 100% certain for urinary tract infection, and it is best to conduct multiple tests to confirm.
It is recommended that patients with urine test results for urine nitrite positive, should be further clarified in a timely manner, after the cause of the disease is clear in the doctor’s guidance under the treatment.