Nitrite
Laboratory Tests
estimated about CNY 20-50
(estimated about USD 3-8)
30 min
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Description
Nitrite testing detects urinary tract infections and kidney issues, often ordered after symptoms like burning urination or cloudy urine; ChinaMedicalHub helps coordinate hospital appointments and interpreter support for patients in China, with typical costs between ¥20–50.
Main Uses
The primary purpose of the nitrite test in urine is to screen for the presence of certain types of bacteria, particularly those that can cause urinary tract infections (UTIs). It is commonly used in the initial evaluation of patients with symptoms of UTI, such as frequent urination, burning sensation during urination, and lower abdominal pain. The test is also useful in monitoring the effectiveness of treatment for UTIs.
Normal Range
The normal range for the nitrite test in urine is typically negative or 0 mg/dL. A positive result, even at low levels, may indicate the presence of bacteria that can reduce nitrates to nitrites.
Low Values - Possible Causes
A negative or low value in the nitrite test usually indicates no significant bacterial infection. Common reasons include: absence of urinary tract infection (UTI), recent antibiotic use, or the presence of non-nitrate-reducing bacteria.
High Values - Possible Causes
A high value or positive result in the nitrite test often suggests a urinary tract infection (UTI). Common causes include: Escherichia coli (E. coli) infection, other gram-negative bacteria, insufficient fluid intake leading to concentrated urine, and contamination of the sample.