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Doctor insights on: Nitrite Positive In Urine Pyelonephritis

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Do nitrites indicate kidney infection or bladder infection?

Do nitrites indicate kidney infection or bladder infection?

Could be either: Infection in the urinary tract often begins with a bladder infection; this may extend further "upstream" to involve the kidneys (but the kidneys could also be a primary source of infection). Either way, nitrates on the dipstick urinalysis usually is how's up as a "byproduct" of bacteria commonly infecting the urinary tract. A kidney infection is usually more symptomatic and more serious. ...Read more

Urine (Definition)

Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more


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Urinalysis showed positive for nitrites in urine?

Urinalysis showed positive for nitrites in urine?

UTI: Bacteria that cause a urinary tract infection (UTI) make an enzyme that changes urinary nitrates to nitrites. Nitrites in urine show a UTI is present. ...Read more

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Can urine that say out too long before being tested show a false positive result of nitrites?

Can urine that say out too long before being tested show a false positive result of nitrites?

It is possible: A false-positive nitrite test result may occur when a urine specimen has remained at room temperature for an extended period of time and bacterial contaminants are allowed to multiply and produce measurable levels of nitrites. ...Read more

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What does it mean when your urine is positive for Nitrite and tested moderate for bacteria? Do you have a UTI? Is further testing necessary?

What does it mean when your urine is positive for Nitrite and tested moderate for bacteria? Do you have a UTI? Is further testing necessary?

Bacteria reduce NO3: These are lab findings on a urine test- and what needs to happen is for your doctor to interpret the test in the clinical setting. Specifically, I would want to 'match up' any urinary symptoms you have, with the urinary findings. A very important element of the urinalysis is whether you have white cells (WBCs) present or not. A few are allowed, but more than 5 and I would pay attention. ...Read more

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What does positive white blood cells and negative nitrites on the urine test mean?

What does positive white blood cells and negative nitrites on the urine test mean?

More information: There is more information on a urinalysis that is needed to know what might be going on. Where there red blood cells, leukocyte esterase, etc? Also, why was the test performed in the first place. Please repost the question with more details. It may be that the specimen was not a 'clean catch' meaning it has some contamination and should be repeated. ...Read more

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25yo male asymptomatic, come with urine biochemistry showing positive nitrite, red cells 1+, protein 1+, bilirubin1+, urobilinogen 1+. Why?

25yo male asymptomatic, come with urine biochemistry showing positive nitrite, red cells 1+, protein 1+, bilirubin1+, urobilinogen 1+. Why?

Urine results: These results could be all false positive, but he needs to be evaluated further by repeat ua and culture. Nitrites can be positive from air exposure, contamination or phenazopyridine. Protein can be present transiently from benign causes such as standing for a long time. Bilirubin and uribilinigen can be due to liver/biliary problems. Rbcs can be due to infection, stones, tumors or kidney disease. ...Read more

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I have a ph of 9 in my urine. Positive for nitrite and a specific gravity of 1.005. My urine smells awful but no burning sensation on passing it?

I have a ph of 9 in my urine. Positive for nitrite and a specific gravity of 1.005. My urine smells awful but no burning sensation on passing it?

Be checked...: Being (+) in nitrite in foul smelly urine suggested having asymptomatic UTI with gram(-) bacilli in urine. Urine Sp Gr of 1.005 indicates diluted urine from high water intake or poor kidney concentrating ability. Yet, you should be checked systemically as described in http://formefirst.com/eNewsletter06.html & in UTI & Voiding Trouble in http://formefirst.com/UTI.html and its related subjects... ...Read more

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Ua showed i was negative for leukocytes. Negative for white blood cells but positive for nitrites and many crystals in urine. Is this normal?

Ua showed i was negative for leukocytes. Negative for white blood cells but positive for nitrites and many crystals in urine. Is this normal?

Clinical symptoms?: It is possible to have a UTI that only shows positivity for nitrites and be negative for wbcs. Studies have shown that when nitrites are positive, a UTI has a strong chance of being present ( = good specificity for the test). Many crystals can be caused by kidney stones or food metabolism issues. ...Read more

Nitrite (Definition)

Comprised of nitrogen & 2 oxygen molecules. Sodium nitrite is used in meat industry to prevent bacterial growth & to maintain the meat's red color (≥ 22mg/kg body weight is toxic); cooking at high heat allows nitrites to combine with Amino Acids to form nitros-amines (carcinogens). It can be converted by many pathways to nitric oxide, a potent vaso-dilator.Amyl nitrite can be ...Read more