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Evaluating a nurse-led, audit-based antimicrobial stewardship in the medical emergency unit of a tertiary level hospital

Published online by Cambridge University Press:  10 July 2026

Rupamdeep Kaur
Affiliation:
Clinical Pharmacology Unit, Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Soumya Vij
Affiliation:
Clinical Pharmacology Unit, Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Kamini Walia
Affiliation:
Division of Descriptive Research, Indian Council of Medical Research, New Delhi, India
Sonam Vijay
Affiliation:
Division of Descriptive Research, Indian Council of Medical Research, New Delhi, India
Asheema Khosla
Affiliation:
Clinical Pharmacology Unit, Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Simranjit Kaur
Affiliation:
Clinical Pharmacology Unit, Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Pawan Kumar
Affiliation:
Clinical Pharmacology Unit, Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Priya
Affiliation:
Clinical Pharmacology Unit, Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Naveen Kumar
Affiliation:
Clinical Pharmacology Unit, Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Priya Choudhary
Affiliation:
Clinical Pharmacology Unit, Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Mahesh Kumar Balasundaram
Affiliation:
Clinical Pharmacology Unit, Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Navneet Sharma
Affiliation:
Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Ritin Mohindra
Affiliation:
Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Manisha Biswal
Affiliation:
Department of Medical Microbiology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Pankaj Arora
Affiliation:
Department of Hospital Administration, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Ashok Pannu
Affiliation:
Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Neelam Taneja
Affiliation:
Department of Medical Microbiology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
Nusrat Shafiq*
Affiliation:
Clinical Pharmacology Unit, Department of Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
*
Corresponding author: Nusrat Shafiq; Email: nusrat.shafiq.pgi@gmail.com
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Abstract

Background:

Emergency departments in tertiary care are critical areas for decision-making regarding antimicrobial use,however, they are often underrepresented in antimicrobial stewardship (AMS) interventions. This study evaluates the impact of a nurse-driven antimicrobial stewardship intervention in a medical emergency unit of a tertiary care facility.

Methods:

A quasi experimental pre–post study was conducted in the Emergency Medical Outpatient department in a tertiary care center. Following a baseline assessment of antimicrobial use patterns conducted by a team of trained stewardship nurses, salient intervention targets were identified and implemented. AMS nurses actively reviewed antimicrobial prescriptions, reinforced adherence to institutional guidelines, monitored device- related practices and diagnostic utilization, and participated in audit and feedback with clinical teams. Data on patient characteristics, infection type, culture practices, antibiotic use, and guideline adherence were collected and compared between pre-intervention and intervention phases.

Results:

Following the intervention, compliance with hospital antibiotic guidelines improved from 82.4% to 91.0%. The proportion of cultures collected before initiating antibiotics increased from 23% to 40.3%, with a corresponding rise in culture positivity from 8% to 22%. An increase in antibiotic de-escalation practices was also noted.

Conclusions:

This nurse-driven antimicrobial stewardship intervention was associated with more rational antimicrobial use, improved diagnostic utilization, and strengthened infection control practices. Integrating stewardship activities into nursing workflows represents a feasible approach to strengthening AMS in high-volume acute care settings.

Information

Type
Original Article
Copyright
© The Author(s), 2026. Published by Cambridge University Press on behalf of The Society for Healthcare Epidemiology of America
Figure 0

Table 1.Patient demographics and baseline characteristics

Figure 1

Table 2.Antimicrobial utilization pattern

Figure 2

Figure 1.Assessment of compliance of antibiotic prescriptions with the institutional policy (observation, n = 312, intervention, n = 345) χ2 test, P = .001, statistically significant.

Figure 3

Table 3.Comparison of appropriateness of antibiotic choice, dose, and duration in observation and intervention periods

Figure 4

Figure 2.Culture collection practices in observation phase and after antimicrobial stewardship intervention.

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