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A urinary tract infection (UTI) is an infection that affects a part of the urinary tract. [1] Lower urinary tract infections may involve the bladder ( cystitis ) or urethra ( urethritis ) while upper urinary tract infections affect the kidney ( pyelonephritis ). [ 10 ]
Urinalysis is commonly used to help diagnose urinary tract infections, but the significance of the results depends on the broader clinical situation. [13] In the setting of UTI symptoms, positive dipstick results for nitrite and leukocyte esterase are strongly suggestive of a UTI, [ 138 ] [ 139 ] but negative results do not rule it out if there ...
A “silent” UTI is a condition in which bacteria is found in the urine during a urine culture, yet the patient is not experiencing any of the classic UTI symptoms.
Pyuria is the condition of urine containing white blood cells or pus.Defined as the presence of 6-10 or more neutrophils per high power field of unspun, voided mid-stream urine, it can be a sign of a bacterial urinary tract infection.
Polyuria (/ ˌ p ɒ l i ˈ jʊər i ə /) is excessive or an abnormally large production or passage of urine (greater than 2.5 L [1] or 3 L [6] over 24 hours in adults). Increased production and passage of urine may also be termed as diuresis.
The symptoms of urethritis can include pain or a burning sensation upon urination (), a white/cloudy discharge and a feeling that one needs to pass urine frequently.For men, the signs and symptoms are discharge from the penis, burning or pain when urinating, itching, irritation, or tenderness.
If urinary tract infection is causative, it can be treated with urinary antimicrobials. [ 30 ] Antimuscarinic agents such as oxybutynin , tolterodine , and solifenacin are especially used in patients who suffer from nocturia due to an overactive bladder and urgency incontinence, because they help bladder contractility.
A random urine, meaning a specimen that is collected at any time, can be used for many tests. However, a sample collected during the first urination of the morning (first morning specimen) is preferred for tests like urinalysis and pregnancy screening because it is typically more concentrated, making the test more sensitive .
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