How is the sample collected for laboratory diagnosis?
An early morning, freshly voided, clean-catch, mid-stream urine should be collected in a sterile, wide mouthed container after proper anogenital toilette. The external genitilia must be cleansed with mild antiseptic or soap before sample collection to avoid contamination of the urine by normal flora present in this region. In men, the prepuce is retracted and in women, the labia is spread apart and then the middle portion of the urine is collected in the container. The sample must be labeled and sent to the laboratory without delay. Which are the other techniques to collect urine specimen? In infants urine flow may be stimulated by tapping just above the pubis with two fingers at one hour after a feed. One tap per second is given for one minute and after an interval of one minute tapping is continued. Under certain conditions, suprapubic aspiration of urine directly from the bladder may be performed. Since this is an invasive technique, it must be performed only when absolutely necessa
