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Doctor insights on: Urinalysis Nitrite Positive

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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

Ua (Definition)

A ua is a urinalysis, or chemical and microscopic analysis of the urine. The standard urinalysis is performed with a dipstick test for ph, blood, protein, sugar, and ketones. In addition, a urinalysis usually includes a microscope examination to identify if the urine contains cells, "casts" (structures that indicate a problem originating in the kidney) or crystals (such as ...Read more


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In the urinalysis I had positive nitrite as well as 500 Leu/uL. What kind of infection could that indicate?

In the urinalysis I had positive nitrite as well as 500 Leu/uL. What kind of infection could that indicate?

Urinary tract: Pos nitrites and leukocyte generally indicate infection in the urine. You need to get a urine culture and see a physician to prescribe you antibiotics. ...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

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Ua shows trace ketones, positive nitrites, few bacteria. Was on levaquin (levofloxacin) & Flagyl for Crohn's when ua done. Do I have a UTI or something else?

Not definitely: Although a urinalysis can be helpful in determining if you have a uti, it is not a definitive test. You need a urine culture to answer this question. Being on Levaquin (levofloxacin) and Flagyl does not mean you cannot have a UTI as you may have an organism resistant to those drugs. Symptoms are also important - if you have no voiding symptoms (frequency, urgency, bad smelling urine) UTI less likely. ...Read more

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Ua shows neg. Leukocytes. Only 1 white blood cell and bacteria is rare. Positive for nitrites. Would cranberry juice cure this or do I need antibiotic?

Ua shows neg. Leukocytes. Only 1 white blood cell and bacteria is rare. Positive for nitrites. Would cranberry juice cure this or do I need antibiotic?

Ua: Without symptoms a culture would have to be done to determine if there was bacteria. Cystitis is a clinical diagnosis with typical symptoms that is better treated with a culture and sensitivity. Nitrites are less important without symptoms, red or white cells in the urine and < 3 cells per hpf is normal range. Often times a catheterised urine specimen is needed. ...Read more

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I have often UTI, I just finished 5 d of Bactrim (sulfamethoxazole and trimethoprim), the UA shown nitrite positive, blood mod, protein 30+ and leukocyte was small. What 's to do next?

Recurrent UTI...: If urinalysis was after Bactrim, (sulfamethoxazole and trimethoprim) you have resistant bacteria, need different antibiotic. Several possible causes of recurrent UTI, including persistent uncured infection; altered bladder function; and kidney or bladder stone. Sex sometimes triggers UTI. Usually recurrences can be prevented once the cause is known. Discuss with your doctor, or ask for referral to infectious diseases specialist. ...Read more

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Took cipro for uti - no improvement in symptoms. Got a urinalysis and nitrites present - now on bactrim. Culture came back neg but I still have sympto?

Took cipro for uti - no improvement in symptoms. Got a urinalysis and nitrites present - now on bactrim. Culture came back neg but I still have sympto?

Culture & sensitivit: UTI very common but if u use frequently antibiotics as Cipro antibiotic resistance can develop and culture + sensitivity important to pick right choice to treat particular bacteria. Also drink plenty of water, cranberry juice, maintain good hygiene and proper nutrition. Ok to use Pyridium x 2-3 days to relieve symptoms. If no better see MD! ...Read more

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What would fishy odorous urine, nitrites, protein and an alkaline pH on urinalysis mean?

What would fishy odorous urine, nitrites, protein and an alkaline pH on urinalysis mean?

Bacterial Vaginosis: Women who have bacterial vaginosis can have a vaginal discharge that smells fishy and causes you to have an alkaline ph. Any infectious process involving your urinary tract can have some degree of proteinuria. I would suggest you seek treatment from your physician for suspected cystitis/uti and see if your symptoms don't resolve. ...Read more

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My mom is 55 yo heavy smoker with no fhx of bladder cancer. On routine ua her rbcs 300 pus150. + blood and nitrite, no symtoms, risk of ca? Next step

My mom is 55 yo heavy smoker with no fhx of bladder cancer. On routine ua her rbcs 300 pus150. + blood and nitrite, no symtoms, risk of ca? Next step

See a urologist: While this may be inflammatory, the lack of symptoms is concerning. Any bacterial presence should be treated based on a culture and careful followup pursued. If blood persists, imaging with contrast-enhanced ct scan and cystoscopy is necessary. Smoking (not family history) is a major risk factor for bladder cancer. In other words, smokers over 50 need to be carefully evaluated for hematuria. ...Read more

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If everything in urine analysis was fine except for presence of nitrite should I worry about UTI? I only have decreased urination volume nothing else

If everything in urine analysis was fine except for presence of nitrite should I worry about UTI? I only have decreased urination volume nothing else

Why was the test: Done? All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Generally presence of nitrite indicates urinary infection and a positive result should be followed up with urine culture. ...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 is a nitrite positive uti?

What is a nitrite positive uti?

It shows: That you have bacteria in your urine that can convert the nitrate normally there into nitrite, gram negative bacteria such as e.coli can do this if urine at least two hours' old in bladder ...Read more

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I took a home UTI in it's positive for nitrite what should I do?

I took a home UTI in it's positive for nitrite what should I do?

Talk to your doctor: The presence of nitrites just means there are bacteria in your urine that make that metabolite; it needs to be interpreted in the setting of symptoms and white blood cells in the urine, and if all are appropriate, needs antibiotics. All roads lead to discussion with the doctor. ...Read more

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Uti leukocytes shows positive, nitrite shows negative?

Uti leukocytes shows positive, nitrite shows negative?

What is the question: These are lab tests, the results of which cannot be interpreted outside the context of your clinical condition. You can have leukocytes in your urine without having a bacterial infection with an organism that converts nitrates to nitrites. ...Read more

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Do positive leukocytes and negative nitrites indicate a uti?

Maybe: Leukocytes (white blood cells) are found in urine when there is any source of irritation (uti, stones, tumors...). Nitrites in urine are generally due to bacteria that make nitrites, but not all bacteria do so. The only way to be sure you have a UTI (and know how best to treat it) is to have the urine cultured, which means it is grown in a lab for 48-72hrs, then tested with several antibiotics. ...Read more

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Moderate bilirubin, trace protein, positive for nitrite and RBC is tntc. What does it mean?

Moderate bilirubin, trace protein, positive for nitrite and RBC is tntc. What does it mean?

Maybe UTI, maybe not: These indicators suggest a possibility of a urinary tract infection, especially if you have burning on urination, frequency and urgency etc...Moderate bilirubin/trace protein can be from concentrated urine. If you have sudden/rapid onset of severe pain, it could be a kidney stone. Why was this done anyway? If you are concerned or having symptoms, consult doc. Good luck. ...Read more

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I took a UTI home strip test twice, both of which came out positive for leukocytes and negetive for nitrites. Does that mean I have a uti?

I took a UTI home strip test twice, both of which came out positive for leukocytes and negetive for nitrites. Does that mean I have a uti?

Possible: Not all UTIs give positive nitrite.Leukocytes could be present if urine not very cleanly collected in female (by wiping very well with antiseptic pad &labia separated).Only sure proof of infection is culture. If you did a dipstick test at home, I presume you are having symptoms. Best to see doctor & probably you will be given antibiotic probably after giving urine specimen. ...Read more

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When you do a home UTI test and the results are positive for leukocytes and negative for nitrite what does that mean?

When you do a home UTI test and the results are positive for leukocytes and negative for nitrite what does that mean?

It's a maybe: White blood cells (leukocytes) can be present without nitrites with an infection, or maybe there are white blood cells present for another reason. This is a time when you should see a doctor so they can look at the urine in a microscope and possibly culture the urine to see if there really is an infection. Good luck. ...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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I took an at home uti test. Twice I was negative both times for Leukocyte and bright pink positive for nitrite.... Does this mean I have a uti??

Yes you most likely: Nitrites are highly sensitive and specific for UTI's. It is unusual that you don't have any or negative leukocytes (WBC's) though. I suggest that you go and visit your physician or local urgent care for a more accurate test to confirm the diagnosis of a UTI and to possibly get a urine culture and sensitivity done. Symptoms of a UTI include frequency, urgency and painful urination. Good Luck! ...Read more

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I took a UTI home strip test twice, both of which came out positive for leukocytes and negetive for nitrites. Have dull side pain. What could it be?

I took a UTI home strip test twice, both of which came out positive for leukocytes and negetive for nitrites. Have dull side pain. What could it be?

No diagnosis possibl: Not nearly enough information. You should realize that you are not getting a diagnosis on your own. You should have professional help. ...Read more

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I am in china. I may have a uti. I took a over-the-counter test which came back positive for leukocytes but negative for nitrite. Help as what 2 take?

Antibiotics: If the symptoms are consistent and a proper urinalysis shows infection, the only reliable treatment is a course of antibiotics. Are there any over the counter antibiotics sold? If so, want are they? ...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

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