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Doctor insights on: Uti Test Leukocytes Positive Nitrite Negative

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UTI test strips at home. Leukocytes - positive & Nitrite - negative . What does that mean? No pain and burning. Leuk. was 3+ at doc's office in Feb.

UTI test strips at home. Leukocytes - positive & Nitrite - negative . What does that mean? No pain and burning. Leuk. was 3+ at doc's office in Feb.

Cystitis: Leukocytes are our body's defense mechanism of fighting bacteria or virus. There is a reaction occurring in the bladder for some reason (and sometimes without symptoms). If your UA shows high specific gravity (>1.025), then you may need to increase fluids in your diet. Then, periodically recheck with UA test strips. If persistent leukocytes, you may need to undergo a cystoscopy. ...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


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Azo UTI test positive leukocytes but negative nitrites mean an std?

Azo UTI test positive leukocytes but negative nitrites mean an std?

UTI: Not necessarily. Your question assumes that we can diagnose on the internet, and this is impossible without a full exam and history and all your lab data. Good luck. ...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??

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 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?

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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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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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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Having lower back pain. Was on Macrobid for 7days, pain started on last day. At Home UTI test positive for leukocytes but negative for nitrites. Help!

Having lower back pain. Was on Macrobid for 7days, pain started on last day. At Home UTI test positive for leukocytes but negative for nitrites. Help!

Not uti: This low back discomfort doesn't seem to be caused by a uti but is more likely due to musculoskeletal problems. If bending,etc aggravates it, it points to spinal origin. If you can take them,NSAIDS like ibuprofen may help. Your physician can evaluate you if symptoms persist. ...Read more

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I have lower back pain and have been urinating more frequently and feels like I'm still urinating even when I've stopped, no burning or itching however. Uti test strip said positive for leukocytes but negative for nitrites. Is this a UTI or something else

Cystitis: The presence of leukocytes indicates cystitis or inflammation of the bladder. This is usually caused by a UTI which can be present despite negative nitrites. Low back pain, urinary urgency & frequency, painful urination may occur. Caffeine, alcohol, spicy foods, acidic foods (citrus fruits, tomatoes) may worsen the symptoms. Less likely causes would include interstitial cystitis or tuberculosis. ...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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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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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 took the at home AZO UTI test and my nitrite was negative, but the leukocytes was postie. Does this mean I have a UTI? I have pressure and burning.

I took the at home AZO UTI test and my nitrite was negative, but the leukocytes was postie. Does this mean I have a UTI? I have pressure and burning.

Possible UTI: You may have a UTI. Nitrites may show up on the test with certain bacterial infections of the urinary tract, but not others. I recommend seeking help from a health professional for further work up. Pressure and burning can be associated with a UTI. Hope that helps! ...Read more

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I have positive leukocytes but negative nitrite. I know that this means i probably have a uti. The problem is i can't afford to go to the doctor. Sugg?

I have positive leukocytes but negative nitrite. I know that this means i probably have a uti. The problem is i can't afford to go to the doctor. Sugg?

Clinic: There are a few clinics for uninsured patients, i would suggest seeing if you could walk in. If not most urgent care clinics will see for cash if you don't have insurance. ...Read more

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I have pain after peeing. And blood in my pee. I took a uti test says my leukocytes are 500+++ and nitrite is negative. What would another option be?

I have pain after peeing. And blood in my pee. I took a uti test says my leukocytes are 500+++ and nitrite is negative. What would another option be?

UTI likely: Urinary nitrite test can be negative, in spite of UTI because some bacteria such as Enterococci, Staphylococcus & Streptococcus do not test nitrite positive. Symptoms could also be due to bladder stone. Cancer, in case UR worried, is unlikely. ...Read more

Urinary Tract Infection (Definition)

A urinary tract infection, also known as an UTI, may involve the kidney, ureter, bladder, or urethra. A common cause is an intestinal bacteria, E. coli. Common symptoms include a frequent urge to urinate, and pain or burning when urinating. Antibiotics are typically ...Read more


Dr. Martin Raff
1,943 doctors shared insights

Urinary Tract Infections (Definition)

A urinary tract infection (often called UTI) is most commonly caused by bacteria and usually refers to an infection in the bladder. Not all bacteria that grows from the urine represents an infection, so the need for antibiotics is determined by your ...Read more