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Use of Pro Re Nata Medication in a Public Psychiatric Hospital Junichi FUJITA 1,2 , Ohji KOBAYASHI 2 , Hiroto ITO 3 , Hisayuki IWAMA 2 , Hideo IWANARI 2 1Psychiatric Center, Yokohama City University Medical Center, Yokohama, Japan 2Kanagawa Psychiatric Center Kinkou Hospital 3Department of Social Psychiatry, National Institute of Mental Health, National Center of Neurology and Psychiatry Keyword: Psychotropic medication , Psychiatric hospital , PRN pp.567-577
Published Date 2009/6/15
DOI https://doi.org/10.11477/mf.1405101439
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 Objectives:We examined the frequency of using pro re nata (PRN) medication in 3 units of a public psychiatric hospital.

 Method:The subjects were 47 psychiatric inpatients who received PRN medications during a period of 3 weeks in September 2007. In addition, we conducted a questionnaire survey among 11 psychiatrists and 79 psychiatric nurses in order to determine staff attitudes toward PRN regimens.

 Results:During the study period, 415 PRN orders were prescribed to 47 patients. A group of 17 (36%) patients who received 10 or more PRN medications each accounted for 72% of the total PRN orders. The frequencies of the PRN orders that were prescribed every 1,000 patient days in an emergency care unit, a long-term unit for men, and a long-term unit for women were 493, 38 and 350, respectively. Among the nurses, 51 (65%) nurses administered PRN medications on the basis of agreements between the patients and nurses, 23 (29%) nurses administered medications on the basis of their independent decisions, and 5 (6%) nurses administered medications on the basis of the psychiatrists' decisions. However, with regard to the ideal approach for administering PRN medications, 41 (52%) nurses believed that the ideal approach should be patient-nurse agreement, 23 (29%) nurses supported the psychiatrists' decisions, 9 (11%) nurses believed in taking indipendent decisions, and 6 (8%) nurses endorsed the idea of seeking the patient' opinions.

 Conclusions:Our results suggest that psychiatric patients frequently received PRN medications, and one third of the PRN patients received three fourths of the total PRN orders. The nurses recognized the discrepancy between the actual and ideal situations. However, a large multicenter study on PRN medications is needed to validate the results.


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電子版ISSN 1882-126X 印刷版ISSN 0488-1281 医学書院

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