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To prevent contamination, a "midstream clean-catch" technique is recommended, in which the genital area is cleaned before urinating and the sample is collected partway through the urination. [22] Samples can also be collected from a urinary catheter or by inserting a needle through the abdomen and into the bladder ( suprapubic aspiration ). [ 25 ]
Bacteriuria is assumed if a single bacterial species is isolated in a concentration greater than 100,000 colony forming units per millilitre of urine in clean-catch midstream urine specimens. [16] In urine samples obtained from women, there is a risk for bacterial contamination from the vaginal flora.
A urine test is any medical test performed on a urine specimen. The analysis of urine is a valuable diagnostic tool because its composition reflects the functioning of many body systems, particularly the kidneys and urinary system , and specimens are easy to obtain. [ 1 ]
The Credé maneuver is a technique used to void urine from the bladder of an individual who, due to disease, cannot do so without aid.The Credé maneuver is executed by exerting manual pressure on the abdomen at the location of the bladder, just below the navel. [1]
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A urine collection device or UCD is a device that allows the collection of urine for analysis (as in medical or forensic urinalysis) or for purposes of simple elimination (as in vehicles engaged in long voyages and not equipped with toilets, particularly aircraft and spacecraft). UCDs of the latter type are sometimes called piddle packs. [1]
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In urine cytology, collected urine is examined microscopically. One limitation, however, is the inability to definitively identify low-grade cancer cells and urine cytology is used mostly to identify high-grade tumors. [4] If the test detects atypical or cancerous cells, further tests may be recommended, such as cystoscopy and a CT scan.