Factors associated with delayed order-to-administration time in the emergency department: a retrospective analysis

Abstract Background Timely medication administration in the emergency department (ED) is critical for improving patient outcomes. This study aimed to identify predictors of delayed order-to-administration (OTA) time, defined as exceeding 30 min for stat medications. Methods A retrospective analysis...

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Main Authors: Yen-Wen Chen, Jian-Heng Lee, Cheng-Ying Chiang, Ya-Ni Yeh, Jih-Chun Lin, Ming-Jen Tsai
Format: Article
Language:English
Published: BMC 2025-04-01
Series:BMC Emergency Medicine
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Online Access:https://doi.org/10.1186/s12873-025-01229-5
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author Yen-Wen Chen
Jian-Heng Lee
Cheng-Ying Chiang
Ya-Ni Yeh
Jih-Chun Lin
Ming-Jen Tsai
author_facet Yen-Wen Chen
Jian-Heng Lee
Cheng-Ying Chiang
Ya-Ni Yeh
Jih-Chun Lin
Ming-Jen Tsai
author_sort Yen-Wen Chen
collection DOAJ
description Abstract Background Timely medication administration in the emergency department (ED) is critical for improving patient outcomes. This study aimed to identify predictors of delayed order-to-administration (OTA) time, defined as exceeding 30 min for stat medications. Methods A retrospective analysis was conducted in the ED of a 1,000-bed tertiary hospital. Patients aged 20 years or older who received stat medications between June 1 and August 31, 2020, were included. Only the first stat medication order per patient was analyzed. Data on patient demographics, triage characteristics, environmental factors, prescription details, and OTA times were extracted from the hospital’s electronic medical record and nursing information system. Multivariable logistic regression with backward elimination was used to identify predictors of OTA delays. Results Among the 11,429 patient visits included, 9.9% experienced OTA delays exceeding 30 min. Predictors of higher odds of delay included older age (adjusted odds ratio [aOR]: 1.01, 95% CI: 1.00–1.01), female sex (aOR: 1.49, 95% CI: 1.31–1.69), limited mobility (aOR: 1.38, 95% CI: 1.17–1.63 for ambulatory with assistance; aOR: 1.24, 95% CI: 1.03–1.48 for non-ambulatory patients), trauma (aOR: 1.35, 95% CI:1.09–1.66), hourly patient visits (aOR: 1.07, 95% CI: 1.05–1.10), concurrent intravenous fluid use (aOR:1.42, 95% CI:1.04–1.93), blood tests (aOR: 1.73, 95% CI: 1.30–2.30), radiography (aOR: 2.22, 95% CI: 1.87–2.64), and computed tomography (aOR: 1.57, 95% CI: 1.37–1.80). Reduced odds of delay were observed among patients with triage level 1 compared to level 3 (aOR 0.25, 95% CI:0.16–0.39), those arriving during night shifts compared to day shifts (aOR: 0.33, 95% CI: 0.18–0.63), and those receiving intramuscular medications compared to intravenous administration (aOR 0.71; 95% CI, 0.55–0.93). Conclusions Several patient, environmental, and diagnostic-related factors were associated with OTA delays in stat medication administration. Understanding these predictors may help inform strategies to optimize ED workflows. Further research is warranted to validate these findings in other ED settings. Clinical trial number Not applicable.
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spelling doaj-art-8dad4992a8be4ababf2c830eabfcd7412025-08-20T02:55:31ZengBMCBMC Emergency Medicine1471-227X2025-04-0125111110.1186/s12873-025-01229-5Factors associated with delayed order-to-administration time in the emergency department: a retrospective analysisYen-Wen Chen0Jian-Heng Lee1Cheng-Ying Chiang2Ya-Ni Yeh3Jih-Chun Lin4Ming-Jen Tsai5Department of Emergency Medicine, Ditmanson Medical Foundation Chia-Yi Christian HospitalDepartment of Emergency Medicine, Ditmanson Medical Foundation Chia-Yi Christian HospitalDepartment of Emergency Medicine, Ditmanson Medical Foundation Chia-Yi Christian HospitalDepartment of Emergency Medicine, Ditmanson Medical Foundation Chia-Yi Christian HospitalDepartment of Emergency Medicine, Ditmanson Medical Foundation Chia-Yi Christian HospitalDepartment of Emergency Medicine, Ditmanson Medical Foundation Chia-Yi Christian HospitalAbstract Background Timely medication administration in the emergency department (ED) is critical for improving patient outcomes. This study aimed to identify predictors of delayed order-to-administration (OTA) time, defined as exceeding 30 min for stat medications. Methods A retrospective analysis was conducted in the ED of a 1,000-bed tertiary hospital. Patients aged 20 years or older who received stat medications between June 1 and August 31, 2020, were included. Only the first stat medication order per patient was analyzed. Data on patient demographics, triage characteristics, environmental factors, prescription details, and OTA times were extracted from the hospital’s electronic medical record and nursing information system. Multivariable logistic regression with backward elimination was used to identify predictors of OTA delays. Results Among the 11,429 patient visits included, 9.9% experienced OTA delays exceeding 30 min. Predictors of higher odds of delay included older age (adjusted odds ratio [aOR]: 1.01, 95% CI: 1.00–1.01), female sex (aOR: 1.49, 95% CI: 1.31–1.69), limited mobility (aOR: 1.38, 95% CI: 1.17–1.63 for ambulatory with assistance; aOR: 1.24, 95% CI: 1.03–1.48 for non-ambulatory patients), trauma (aOR: 1.35, 95% CI:1.09–1.66), hourly patient visits (aOR: 1.07, 95% CI: 1.05–1.10), concurrent intravenous fluid use (aOR:1.42, 95% CI:1.04–1.93), blood tests (aOR: 1.73, 95% CI: 1.30–2.30), radiography (aOR: 2.22, 95% CI: 1.87–2.64), and computed tomography (aOR: 1.57, 95% CI: 1.37–1.80). Reduced odds of delay were observed among patients with triage level 1 compared to level 3 (aOR 0.25, 95% CI:0.16–0.39), those arriving during night shifts compared to day shifts (aOR: 0.33, 95% CI: 0.18–0.63), and those receiving intramuscular medications compared to intravenous administration (aOR 0.71; 95% CI, 0.55–0.93). Conclusions Several patient, environmental, and diagnostic-related factors were associated with OTA delays in stat medication administration. Understanding these predictors may help inform strategies to optimize ED workflows. Further research is warranted to validate these findings in other ED settings. Clinical trial number Not applicable.https://doi.org/10.1186/s12873-025-01229-5AnalgesicsAntibioticsEmergency departmentMedication administrationOrder-to-administration timeTreatment delay
spellingShingle Yen-Wen Chen
Jian-Heng Lee
Cheng-Ying Chiang
Ya-Ni Yeh
Jih-Chun Lin
Ming-Jen Tsai
Factors associated with delayed order-to-administration time in the emergency department: a retrospective analysis
BMC Emergency Medicine
Analgesics
Antibiotics
Emergency department
Medication administration
Order-to-administration time
Treatment delay
title Factors associated with delayed order-to-administration time in the emergency department: a retrospective analysis
title_full Factors associated with delayed order-to-administration time in the emergency department: a retrospective analysis
title_fullStr Factors associated with delayed order-to-administration time in the emergency department: a retrospective analysis
title_full_unstemmed Factors associated with delayed order-to-administration time in the emergency department: a retrospective analysis
title_short Factors associated with delayed order-to-administration time in the emergency department: a retrospective analysis
title_sort factors associated with delayed order to administration time in the emergency department a retrospective analysis
topic Analgesics
Antibiotics
Emergency department
Medication administration
Order-to-administration time
Treatment delay
url https://doi.org/10.1186/s12873-025-01229-5
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