Answered

What does the presence of nitrites in the urine indicate?

A. Viral infection of the ureter
B. Bacterial infection in the urinary tract
C. Gall stones
D. Kidney stones



Answer :

Final answer:

The presence of nitrites in urine indicates a bacterial infection in the urinary tract. Gram-negative bacteria like E. coli commonly produce nitrites, serving as evidence of infection.


Explanation:

The presence of nitrites in the urine indicates a bacterial infection in the urinary tract. Nitrites in the urine are often produced by Gram-negative bacteria like E. coli, Proteus vulgaris, Pseudomonas aeruginosa, and Klebsiella pneumoniae. These bacteria convert nitrate to nitrite, indicating an active bacterial infection.


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