Clinical Utility of the Hopkins Competency Assessment Test on an Inpatient Geropsychiatry Unit

Department of Psychiatry, University of Oklahoma College of Medicine-Tulsa, Tulsa, Oklahoma, USA.
American Journal of Alzheimer s Disease and Other Dementias (Impact Factor: 1.63). 02/2009; 24(1):34-9. DOI: 10.1177/1533317508326374
Source: PubMed


This study examined the clinical use of routine administration of the Hopkins Competency Assessment Test on an inpatient geropsychiatry unit. The purpose was to determine whether the Hopkins Competency Assessment Test results influenced the psychiatrist's capacity assessment or confidence in that determination. The test was administered to all patients admitted voluntarily during an 18-week period. The attending psychiatrist determined treatment consent capacity and rated confidence in that determination, before and after review of the test results. Fifty seven patients were assessed. After review of the test results, the psychiatrist's capacity rating changed in only 2 (3.5%) cases. However, the test increased the psychiatrist's confidence ratings, particularly among the patients with cognitive impairment. The Hopkins Competency Assessment Test is not suited for routine administration among geropsychiatry inpatients. However, the test may serve a role as a supplementary tool for assessing treatment consent capacity among patients with evidence of cognitive impairment.

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    • "As Appelbaum (2010) and Cairns et al. (2005) point out, clinical assessments may improve when standardized procedures such as the MacCAT-T are used in combination with clinical assessments. However, it has also been shown that physicians' assessments tend to be more lenient than psychometric assessments (Dunn et al., 2006; Raymont et al., 2004; Vellinga, Smitt, van Leeuwen, van Tilburg, & Jonker, 2004; Vollmann et al., 2003; Wilkins, Lund, Mc- Adams, & Yates, 2009). These findings were interpreted as showing that physicians were relatively insensitive to decisional impairment (Dunn et al., 2006) and tended to evaluate people as competent unless there was clear evidence to the contrary (Vellinga et al., 2004). "
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    ABSTRACT: Aims and objectivesTo provide a narrative synthesis of research findings on instruments or tools designed to aid assessment of patient capacity to consent to treatment. Background Capacity assessment is of significant priority within health care as a finding of incapacity is a vehicle for the removal of many of an individual's fundamental rights. Despite there being many instruments and tools available to aid health professionals in the assessment of patient capacity, there are no standardised guidelines from professional bodies that inform the assessment of mental capacity. DesignIntegrative review. Method Primary studies of instruments or tools concerning assessment of patient capacity to consent to treatment, published in English in peer-reviewed journals between January 2005-December 2010, were included in the review. Review papers of capacity assessment instruments were included for years including and prior to 2006. ResultsNineteen instruments were found which assess patient capacity to consent. Key themes were identified in terms of capacity domains assessed, psychometric properties, instrument implementation, patient populations studied and instrument versus clinician judgement. Conclusion Despite a plethora of capacity assessment instruments and tools available, only a small number of instruments were found to have demonstrated both reliability and validity. Further research is required to improve the validity of existing capacity assessment instruments. Relevance to clinical practiceIncreased attention to patient rights and autonomy arguably places a considerable burden on healthcare professionals to facilitate capacity assessments across a continuum of health care. Despite a plethora of capacity assessment instruments and tools being available to healthcare professionals, a comprehensive assessment requires time and is often difficult in the acute care setting. A strictly formulaic approach to the assessment of capacity is unlikely to capture specific individual nuances; therefore, capacity assessment instruments should support, but not replace, experienced clinical judgement.
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