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Urine Nitrite

The presence of nitrites in urine most commonly means there’s a bacterial infection in your urinary tract. … Some types of bacteria have an enzyme that converts nitrates into nitrites. This is why the presence of nitrites in your urine is an indicator that you may have a UTI.

A urinalysis is a test of your urine. A urinalysis is used to detect and manage a wide range of disorders, such as urinary tract infections, kidney disease and diabetes.

A urinalysis involves checking the appearance, concentration and content of urine. Abnormal urinalysis results may point to a disease or illness.

Urine Chemical Examination

Also Known as:  Urine TestUrine Analysis , Urine CE, Urine C/E, UCE, Urinalysis

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Test Panel: Physical properties, Chemical Tests, Dipstick Tests, Microscopic Examination

Type of urine samples:

  • Random sample:
    This is a diluted urine sample and may give an inaccurate interpretation of patient health. But is best to do microscopy to evaluate WBC or RBC.
  • First Morning sample:
    This is the best sample for microscopy and urine analysis. This is the concentrated urine because of urine remained throughout the night in the urinary bladder. This will contains an increased concentration of analytes and cellular elements. Urine must have remained in the bladder for 8 hours is considered as the first-morning sample.
  • Urine for sugar (Postprandial 2 hours):
    Postprandial 2 hours sample collected after 2 hours of high carbohydrate diet. 
  • Midstream clean catch urine:
    This sample is needed for the culture and sensitivity of urinary infection. The patient is advised to clean the urethra, then discard the first few mL of urine. Now midstream of the urine is collected in the sterile container.
  • 24 Hours of a urine sample
    • In this case, discard the first urine and note the time.
    • Now collect urine in the container for 24 hours and put the last sample in the container.
    • Refrigerate the sample.
    • This 24 hours samples are needed for measuring urea, creatinine, sodium, potassium, glucose, and catecholamines.
  • Suprapubic collection of the urine sample:
    This is done in the patients who cannot be catheterized and the sample is needed for culture. This sample is collected by the needle.
  • Catheter collection of urine:
    This is done by patients who are bedridden and can not urinate.
  • Pediatric urine sample:
    In infants, special collection bags are made adherent around the urethra. Then urine is transferred to a container.

Urinary Nitrite:

The presence of nitrites in urine most commonly means there’s a bacterial infection in your urinary tract. … Some types of bacteria have an enzyme that converts nitrates into nitrites. This is why the presence of nitrites in your urine is an indicator that you may have a UTI.

Dipstick Urine Tests

Why get Tested:

The presence of nitrites in urine most commonly means there’s a bacterial infection in your urinary tract. This is usually called a urinary tract infection (UTI).

UTIs usually have other symptoms, such as:

  • burning with urination
  • feeling the need to urinate often without passing much urine
  • increased urgency of urination
  • blood in the urine
  • cloudy urine
  • strong smelling urine

When to get Tested:

Nitrites in the urine are diagnosed with a test called a urinalysis. A urinalysis may be done for a variety of reasons including:

  • if you have symptoms of a UTI, like painful urination
  • during a routine checkup
  • if you have blood in your urine or other urinary problems
  • before a surgery
  • during a pregnancy checkup
  • if you’re admitted to a hospital
  • to monitor an existing kidney condition
  • if your doctor suspects you have diabetes

Sample Required:

  • The sample is urine.
  • The random sample can be taken.

Normal Range:

Normally Nitrite is absent in the urine

Nitrite is seen in:

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