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Pharmacy World and Science

, Volume 26, Issue 3, pp 148–154 | Cite as

Factors influencing PRN medication use in nursing homes

  • Julie A. Stokes
  • David M. Purdie
  • Michael S. Roberts
Article

Abstract

Objective: To identify determinants of PRN (as needed) drug use in nursing homes. Decisions about the use of these medications are made expressly by nursing home staff when general medical practitioners (GPs) prescribe medications for PRN use.

Method: Cross-sectional drug use data were collected during a 7-day window from 13 Australian nursing homes. Information was collected on the size, staffing-mix, number of visiting GPs, number of medication rounds, and mortality rates in each nursing home. Resident specific measures collected included age, gender, length of stay, recent hospitalisation and care needs.

Main outcome measures: The number of PRN orders prescribed per resident and the number of PRN doses given per week averaged over the number of PRN medications given at all in the seven-day period.

Results: Approximately 35% of medications were prescribed for PRN use. Higher PRN use was found for residents with the lower care needs, recent hospitalisation and more frequent doses of regularly scheduled medications. With increasing length of stay, PRN medication orders initially increased then declined but the number of doses given declined from admission. While some resident-specific characteristics did influence PRN drug use, the key determinant for PRN medication orders was the specific nursing home in which a resident lived. Resident age and gender were not determinants of PRN drug use.

Conclusion: The determinants of PRN drug use suggest that interventions to optimize PRN medications should target the care of individual residents, prescribing and the nursing home processes and policies that govern PRN drug use.

Aged Australia Drug utilization Epidemiologic factors Nursing decision making Nursing homes Prescribing 

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References

  1. 1.
    Gurwitz JH, Soumerai SB, Avorn J. Improving medication prescribing and utilization in the nursing home. J Am Geriatr Soc 1990; 38: 542–52.Google Scholar
  2. 2.
    Macklin J. Issues in pharmaceutical drug use in Australia. Canberra: AGPS Publications, 1992 (http://www.health.gov.au/archive/nhs/documents/nhs/nhs17.pdf).Google Scholar
  3. 3.
    Schmidt I, Claesson CB, Westerholm B, Svarstad BL. Resident characteristics and organizational factors influencing the quality of drug use in Swedish nursing homes. Soc Sci Med 1998; 47: 961–71.Google Scholar
  4. 4.
    Robers PA. Extent of medication use in U.S. long-term-care facilities. Am J Hosp Pharm 1988; 45: 93–100.Google Scholar
  5. 5.
    Wayne SJ, Rhyne RL, Stratton SM. Longitudinal prescribing patterns in a nursing home population. J Am Geriatr Soc 1992; 40: 53–6.Google Scholar
  6. 6.
    Roberts M, King M, Stokes J, Lynne T, Bonner C, McCarthy S et al. Medication prescribing and administration in nursing homes. Age Ageing 1998; 27: 385–92.Google Scholar
  7. 7.
    Aycock EK. PRN drug use in nursing homes. Am J Hosp Pharm 1981; 38: 105.Google Scholar
  8. 8.
    Hughes CM, Lapane KL, Mor V. Influence of facility characteristics on use of antipsychotic medications in nursing homes. Med Care 2000; 38: 1164–73.Google Scholar
  9. 9.
    Shorr RI, Fought RL, Ray WA. Changes in antipsychotic drug use in nursing homes during implementation of the OBRA-87 regulations. J Am Med Assoc 1994; 271: 358–62.Google Scholar
  10. 10.
    Svarstad BL, Mount JK. Nursing home resources and tranquilizer use amoung the institutionalized elderly. J Am Geriatr Soc 1991; 39: 869–75.Google Scholar
  11. 11.
    Miller CA. PRN drugs. To give or not to give? Geriatr Nurs 1982; 3(Jan/Feb): 37–8.Google Scholar
  12. 12.
    Roberts MS, Stokes JA, King MA, Lynne TA, Purdie DM, Glasziou PP et al. Outcomes of a randomized controlled trial of a clinical pharmacy intervention in 52 nursing homes. Br J Clin Pharmacol 2001; 51: 257–65.Google Scholar
  13. 13.
    Aged and Community Care Division, Commonwealth Department of Human Services and Health. The Nursing Home Manual. Canberra: Commonwealth Department of Human Services and Health, 1995.Google Scholar
  14. 14.
    WHO Collaborating Centre for Drug Statistics Methodology. Anatomical Therapeutic Chemical (ATC) Classification Index. Oslo: World Health Organisation, 1994.Google Scholar
  15. 15.
    Duxbury J. An investigation into primary nursing and its effects on the nursing attitudes about and administration of prn night sedation. J Adv Nurs 1994; 19: 923–31.Google Scholar
  16. 16.
    Ingman SR, Lawson IR, Pierpaoli PG, Blake P. A survey of the prescribing and administration of drugs in a long term care institution for the elderly. J Am Geriatr Soc 1975; 23: 309–16.Google Scholar

Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Julie A. Stokes
    • 1
  • David M. Purdie
    • 2
  • Michael S. Roberts
    • 1
  1. 1.Therapeutics Research Unit, School of MedicineUniversity of Queensland, Princess Alexandra HospitalWoolloongabbaAustralia
  2. 2.Population Studies & Human Genetics DivisionQueensland Institute of Medical ResearchWoolloongabbaAustralia

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