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Updated: Aug 1, 2025

Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses
Published on: August 30, 2018
Beating the clock: Reduced time to first antibiotic dose administration following an audit and feedback intervention
Tal Schlaeffer-Yosef1, Tali Shafat2, Jacob Dreiher3
1Infectious Diseases Institute, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
Objective:
Quality improvement interventions and policy revisions have been shown to improve clinical practice and patient outcomes. This study evaluated an intervention to shorten the time from the first antibiotic dose ordering to its administration in patients hospitalised with bacterial infections.
Methods:
An intervention consisting of a weekly email report to nurse and physician leaders in hospital departments was introduced. The report included the percentage of patients who received their first antibiotic dose within 3 hours and details of those who did not. Interrupted time series analysis was used to compare the delay between the order and administration of antibiotics in various wards (surgical and medical) and daily nursing shifts.
Results:
The total number of orders pre-intervention and post-intervention was 58 320 and 52 127, respectively. The most protracted delays were observed during the morning shift in the surgical and medical wards (161 and 100 minutes, respectively). Comparing the pre- to post-intervention time to the first antibiotic dose (TTFAD), a reduction in the morning shift was noted both in the surgical wards (87 minutes, 55%) and medical wards (37 minutes, 37%) and with a preserved trend (P < 0.001). The slope's angle before and after the intervention was not affected.
Conclusion:
Using an audit and feedback automatic weekly report significantly reduced TTFAD in hospitalised patients. This intervention proved to be simple and sustainable over time. Raising staff awareness of current medical care practices is an effective way of improving performance.
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