General Hospital Psychiatry
Volume 32, Issue 1 , Pages 99-101, January 2010

Substance misuse among older patients in psychiatric emergency service

  • Benjamin K.P. Woo, M.D.

      Affiliations

    • Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA 90095, USA
    • Olive View-UCLA Medical Center, Sylmar, CA 91342, USA
    • Corresponding Author InformationCorresponding author. Tel.: +1 818 364 1555.
    • ,
  • Weilu Chen

      Affiliations

    • Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA 90095, USA

Received 27 May 2009; accepted 3 August 2009. published online 14 September 2009.

Abstract 

Objective

To determine the prevalence of substance misuse among older patients presented to a psychiatric emergency service (PES) on involuntary bases.

Method

At the time of initial presentation to the PES, all patients received a comprehensive assessment that included a urine toxicology screening. The screening consisted of six substances: barbiturate, benzodiazepine, cocaine, opiate, phencyclidine and amphetamine. Charts of elderly patients (aged 65 and above) with positive urine toxicology were reviewed to ensure that the results were not due to (1) home medications and (2) medications given in the PES.

Results

During the 2-year study period (2006–2007), there were 5914 patients under the age of 65 and 104 patients aged 65 and above. Our findings indicated that 471 (8.0%) and 14 (13.4%) urine toxicology screens were not collected during the PES visits in younger and older patients, respectively (P=.04). The positive urine toxicology rate was 31.5% (1716/5443) and 26.7% (24/90) for younger and older patients, respectively (P=.33).

Conclusions

Substance misuse in the older population presenting with psychiatric emergency is prevalent in the PES. Urine toxicology screens, as well as patient or collateral report of substance usages, should be obtained from this group of patients to ensure quality of care delivered at the PES.

Keywords: Psychiatric emergency service, Substance, Geriatric

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PII: S0163-8343(09)00146-7

doi:10.1016/j.genhosppsych.2009.08.002

General Hospital Psychiatry
Volume 32, Issue 1 , Pages 99-101, January 2010

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