PubMedDate not supplied
An ultrasound scan of the bladder using a portable bladder scanner is a reliable, non-invasive way of estimating the volume of residual urine that remains in the bladder after voiding (the post-void residual) (Addison, 2000a). Nurses now use bladder ultrasound scanners in a variety of clinical settings (Lewis, 1995). It has been argued that ultrasound should be a standard investigation for the assessment of patients with bladder problems (Addison, 2000a), in particular when emptying their bladder. Older people, particularly men and those with a neurological disorder, including stroke, are most at risk of having a problem emptying their bladder effectively (Addison, 2000b; Brittain et al, 1998).