Doctor insights on:
What Are The Differences Between Urinalyisis And Urine Culture
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
Normal ranges: The urinalysis report should contain a normal reference range for each item tested. If there are any tests that fall out of that range, it will be flagged as abnormal. As far as a urine culture is concerned, if the specimen was collected correctly, any bacteria found would be considered abnormal and should probably be treated, especially if you have symptoms of a urinary tract infection. ...Read more
Why might there be presence of blood to appear on your urinalysis when the urine culture came back negative?
Yes: Because of this relative insensitivity of dipstick urinalysis, the absence of leukocyte esterase (let) does not rule out urinary tract infection (uti). Similarly, and more common, a positive let on dipstick does not always indicate the presence of a uti. A urine culture should generally be done when symptoms suggest the presence of a UTI regardless of the urinalysis results. ...Read more
Son's urinalysis was negative yet the urine culture showed that there was an infection. Why was the urinalysis negative?
Contaminant: The culture may have been contaminatedwhat was the organism recovered? ...Read more
Can a positive urine culture with group b strep, but normal urinalysis confirm a UTI? Or likely to not be a UTI?
Confirm a UTI: Group B strep is usually a gut bacteria. If there are symptoms such as burning on urination foul-smelling urine for the positive culture it is most likely a urinary tract infection. Urinalysis probably would show a positive leukocyte esterase test. The culture is usually the goal stand it if it is greater than 100,000 colonies. ...Read more
See below: Urinalysis, if normal, would obviate the need for the more expensive culture test. ...Read more
Hwbc & lrbc in a urinalysis and blood? I did have a UTI at the time. My urine culture was normal. Should i be worried?
Incomplete info: All lab results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the position to do that. It would be helpful to look at the actual lab results. Blood in urine is something to be concerned about and you should consult your doctor. ...Read more
I did two urinalysis at different timings, both showed high epithelial cells but urine culture was negative. Is there a possibility of cancer?
When a urinalysis and urine culture is performed do they always do a microscopic exam of the urine sample to check for casts?
During a routine checkup , my urinalysis showed elevated wbc , negative urine culture , no symptoms . What may the cause be ?
Various Causes.: Having WBCs in your urine without symptoms is described as sterile pyuria. This depends also on how many WBCs are present. This can be due to many conditions including contamination, various infections including STIs, inflammatory conditions etc. I would discuss with your provider and have them review your full urinalysis to see if there are any other abnormalities present and review your history. ...Read more
5 year old with frequent urination and accidents x 4 days. No pain, no fever. Urine culture negative. Sugar also tested in urine and was ok. What could cause frequent urination with negative urinalysis?
Frequent urination: In a child with negative bacterial culture is often related to anxiety or other emotional reasons. It can also be seen with stool holding and constipation, or related to chemical irritation from food dyes or viral infection. Sometimes medications such as albuterol can cause temporary bladder specificity. ...Read more
Burning feeling all day after bowel movement and ejaculation?Urinalysis and Urine Culture Test clear. Issues from 6 years after varicolectomy.Solution
Diagnosis first: In such a situation, one can ask for a Voiding Cystourethrogram (VCUG) and for an Abdominal + Bladder ultrasound scan. The VCUG may show that the urine is flowing the correct way during urination, or if there is a problem, it may show urine going into an unusual direction or location. The urologist and radiologist can help figure this one out. ...Read more
I took a urinalysis. The protein level was 30. The wbc 11-30, the red bc 3-10. The urine culture showed no growth? Burning urine & flank pain
UTI: You appear to have some type of infection and if your culture is negative you need to have an exam to determine if the infection could possibly be vaginal. See your doctor and get a definitive diagnosis ...Read more
3 weeks into Doxycycline I have stabbing bladder pain when bladder is full. Do I need complete urinalysis and urine culture? Perhaps bacteria/protozoans/fungi not susceptible to doxy have grown unopposed?
Why on doxy?: I'm curious: why have you been on doxy for 3wks? I'm assuming that it is either for acne or for prostate infection. If for acne, recommend switching to another antibiotic and seeing if doc will write you something to treat yeast (Candida). Diflucan (fluconazole) once or twice weekly for 2-4 weeks will help...compounded nystatin is better. If taking for prostate the prostate prob may be causing symptoms. ...Read more
5 yo girl, no history of UTI or kidney probs: in hosp for hi fever, dehydratn, urinalysis=+ for bact, urine culture=-! renal echo=dilated kidn. Opinions?
Consult a urologist: This child may have a number of problems, the most likely being vesicoureteral reflux or upj obstruction. She may need further studies, including a test called VCUG or a nuclear renal scan. If possible, consult with a pediatric urology subspecialist. She may need to be on antibiotics indefinitely until the problem can be diagnosed definitively. ...Read more
Whats the difference between a urinanaylsis and a urine culture? Which would be best to detect proteus mirabilis? Would both be able to do it?
Cultures are best: A urinalysis is a quick check of the urine that shows the presence of blood, protein, ph, specific gravity, and a quick evaluation of possible infection. It can be done in a couple of minutes by machine. A urine culture takes about 48 hours and will identify the bacterial organism and give the physician a list of the the proper antibiotics to use. ...Read more
Talk to pathologist: The report is usually issued to your doctor, who should explain it to you. If you still have issues, you may contact the pathologist in-charge of the lab that did the test. The issue is not suitable for this forum for an adequate explanation. ...Read more
Not normal, ? UTI: Urinary infection is most common cause of mucus in urine. So you should have a routine urinalysis. Mucus is sometimes & rarely associated with a muus producing bladder tumor & occasionally with kidney stones. Mucus is always if subject has had bladder enlargement surgery using a segment of bowel, in which case it is a normal finding. ...Read more
Tiny sample of urine is spread on a bacterial growth culture medium, e.G agar & placed in an incubator to grow. Positive urine cultures demonstrate colonies of bacteria which can then be identified. Such colonies can then be recultured in presence of various antibiotics to identify to which the isolated organism is sensitive. ...Read more