MRSA and Computer Keyboards: A PICOT Analysis for Nurses
This paper examines the risk of methicillin-resistant Staphylococcus aureus (MRSA) transmission via public-access computer keyboards in healthcare settings, with a focus on critical care nursing staff. Drawing on research identifying MRSA contamination on hospital keyboards, the paper frames the problem using the PICOT model — Population, Intervention, Comparison, Outcome, and Time — to propose a structured clinical inquiry. The proposed intervention involves the use of disposable plastic gloves during all computer use by nursing staff on critical care wards, with outcomes measured by comparing MRSA infection rates on intervention and control wards. The paper argues that this low-cost intervention warrants formal evaluation and possible integration into universal precautions policy.
- Introduction: MRSA as a Nosocomial Threat: MRSA prevalence in hospitals despite universal precautions
- Computer Keyboards as a Source of MRSA Contamination: Keyboards identified as routine MRSA transmission vector
- PICOT Framework for the Proposed Intervention: Structured clinical question using PICOT elements
- Expected Outcomes and Implications for Practice: Glove intervention outcomes and policy implications
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What makes this paper effective
- Grounds a practical clinical question in peer-reviewed epidemiological evidence before introducing the PICOT framework, giving the inquiry credibility.
- Uses the PICOT structure methodically, moving logically from population identification through time considerations, which models clear clinical reasoning.
- Proposes a realistic, low-cost intervention (disposable gloves) and justifies its feasibility by noting that MRSA data are already routinely collected by ward.
Key academic technique demonstrated
The paper demonstrates the application of the PICOT question format to translate a real-world infection-control problem into a structured, researchable clinical inquiry. By defining each PICOT element explicitly, the author shows how evidence-based practice begins with precise question formulation rather than a vague concern about patient safety.
Structure breakdown
The paper opens with a broad overview of MRSA in healthcare environments, then narrows to the specific vector of computer keyboards supported by a cited study. It then applies the PICOT framework element by element — Population, Intervention, Comparison, Outcome, and Time — each addressed in a clearly labeled subsection. The paper closes by noting the availability of existing MRSA benchmarks and the feasibility of a short evaluation timeline.
Introduction: MRSA as a Nosocomial Threat
Despite the most rigorous and comprehensive universal precautions, healthcare facilities remain germ-ridden environments that can introduce potentially deadly infections in patients. Hospitals and clinics in particular are notoriously infectious environments, and nosocomial infections due to methicillin-resistant Staphylococcus aureus (MRSA) are increasingly commonplace across the country (Boa & Rahube, 2013). As Boa and Rahube emphasize, "Numerous nosocomial MRSA outbreaks occur annually due to the widespread prevalence of MRSA within hospitals" (p. 50).
Computer Keyboards as a Source of MRSA Contamination
Beyond the broad array of environmental reservoirs, one particular source of MRSA contamination that many healthcare providers encounter on a routine basis is the public-access computer keyboard used to input patient data and coordinate care (Boa & Rahube, 2013). A study by the University of Toledo examined 24 public-access computer keyboards and identified two that were MRSA-contaminated (Boa & Rahube, 2013). Based on the proliferation of computer keyboards in the healthcare workplace, more studies of this type are needed to determine the true scope of the problem, though it is reasonable to suggest that contamination is widespread (Boa & Rahube, 2013).
Given the potential for serious adverse healthcare outcomes associated with MRSA infections, this problem requires greater attention from all healthcare providers who use computers in the workplace — which is to say, all healthcare providers — because of the high prevalence of MRSA carriage among this population (Saxena & Goyal, 2009). The Centers for Disease Control and Prevention recognizes MRSA as a significant public health concern, particularly in healthcare settings where vulnerable patients are at elevated risk.
PICOT Framework for the Proposed Intervention
The following section applies the PICOT framework — Population, Intervention, Comparison, Outcome, and Time — to structure a clinical inquiry into the effectiveness of disposable gloves as a preventive measure against keyboard-mediated MRSA transmission.
P: Population. The population of interest for this issue is comprised of nursing staff on critical care wards in a tertiary healthcare facility.
I: Intervention or Variable of Interest. The variable of interest is exposure to infections due to contamination by computer keyboards in the healthcare workplace. The intervention is the use of disposable, thin plastic gloves for all computer usage by nursing staff.
C: Comparison. A comparison between the MRSA infection rates in a critical care nursing ward where all nurses use disposable plastic gloves and a comparable ward where nurses do not wear disposable plastic gloves will be conducted.
O: Outcome. The comparison of MRSA infection rates on critical care wards where nurses used plastic gloves with a ward where nurses do not should identify an opportunity to improve patient care by incorporating this practice into the facility-wide universal precautions policy.
T: Time. Since MRSA infection rates are already collected and aggregated by most hospitals at the ward level — and sometimes by shift and even by individual healthcare provider — benchmarks are available. The time required to evaluate the efficacy of the described intervention will therefore be relatively short, and meaningful findings should emerge within a few months.
References
Boa, T. T., & Rahube, T. O. (2013, January–February). Prevalence of methicillin-resistant staphylococci species isolated from computer keyboards located in secondary and postsecondary schools. Journal of Environmental Health, 75(6), 50–55.
Saxena, S., & Goyal, R. (2009, September). Prevalence of methicillin-resistant Staphylococcus aureus colonization among healthcare workers and healthy community residents. Journal of Health Population and Nutrition, 20(3), 279–283.
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