title: Easing patient discomfort.
authors.forename: A
authors.initials: A
authors.lastname: Smith
mesh_terms: D006801:Humans; D014463:Ultrasonography; D001743:Urinary Bladder / Q000000981:diagnostic imaging*; D014546:Urinary Catheterization; D016055:Urinary Retention / Q000000981:diagnostic imaging*