An audit of the use of chest radiography in the elderly mentally ill

Abstract

Chest X‐rays are widely used in the investigation of patients with both functional and organic mental illness. For patients with dementia their routine use has been recommended by many authorities. However, the existing evidence to support such use is not strong. A prospective audit was performed to ascertain the yield of chest X‐rays affecting patient management in a series of consecutive admissions covering all diagnoses. The yield of unexpected findings was substantial, but few of these led to a change in medical management and hence potentially to the course of illness. Apparently significant radiological findings did not always correlate with actual physical illness. The low yield of results affecting management does not support the routine use of chest radiography in elderly mentally ill, and its use should be limited to when functional illness is refractory to treatment or when demented patients suddenly deteriorate without obvious cause.