John W. Hafner

Illinois College — United States

Medicine · Health Sciences

24h-index7.4kcitations105works20.42yr avg
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Research Topics

Emergency and Acute Care Studies(13), Cardiac Arrest and Resuscitation(10), Long-Term Effects of COVID-19(8), Advanced Image and Video Retrieval Techniques(7), Image Retrieval and Classification Techniques(7)

Publications99 total

Physical Function Differences by COVID-19 Status: A Cross-Sectional Analysis from the RECOVER Adult Cohort
Physical Therapy·2025
Comparing wait times for psychiatric patients presenting to urban and rural emergency departments in an Illinois hospital system.
Rural Mental Health·2025
Chronic Nitrous Oxide Toxicity Despite Elevated Serum Vitamin B12 Level
Clinical Practice and Cases in Emergency Medicine·2025Open Access
EFFECTIVENESS OF ACCELERATED CHEST PAIN CARE PATHWAYS AND A MACHINE LEARNINGALGORITHM USING HIGH SENSITIVITY TROPONIN-I COMPARED WITH A SINGLE THRESHOLD APPROACHFOR EVALUATION OF SUSPECTED MYOCARDIAL INFARCTION IN A COMMUNITY EMERGENCY DEPARTMENTPOPULATION
Journal of the American College of Cardiology·2024
Researching COVID to Enhance Recovery (RECOVER) adult study protocol: Rationale, objectives, and design
PLoS ONE·2023· 55 citedOpen Access
Researching COVID to enhance recovery (RECOVER) adult study protocol: Rationale, objectives, and design
2023· 1 citedOpen Access
Inhaled synthetic cannabinoids laced with long-acting anticoagulant rodenticides: a clear and present worldwide danger
Toxicology Communications·2022· 5 citedOpen Access
Severe Vitamin K-dependent Coagulopathy from Rodenticide-contaminated Synthetic Cannabinoids: Emergency Department Presentations
Western Journal of Emergency Medicine·2021· 5 citedOpen Access
Unmet clinical laboratory need in patients hospitalized for acute poisoning from long-acting anticoagulant rodenticides
Toxicology Communications·2021· 4 citedOpen Access
Safe Treatment Duration with Oral Vitamin K1in Patients Poisoned with Inhaled Synthetic Cannabinoids Contaminated with Brodifacoum, a Long-Acting Anticoagulant Rodenticide
2021Open Access
344 The Accuracy of Point-of-Care Hemoglobin Testing in Acute Gastrointestinal Bleeds and its Implication in the Emergency Department
Annals of Emergency Medicine·2020
Preparing Tomorrow’s Leaders: A Novel Approach to an Emergency Medicine Administration Rotation
eScholarship (California Digital Library)·2020Open Access
Effects of vitamin K1 treatment on plasma concentrations of long-acting anticoagulant rodenticide enantiomers following inhalation of contaminated synthetic cannabinoids
Clinical Toxicology·2019· 20 citedOpen Access
Recommendations for the Emergency Department Prevention of Sport-Related Concussion
Annals of Emergency Medicine·2019· 10 cited
<p>The effect of a community crash reenactment program on teen alcohol awareness and behavior</p>
Adolescent Health Medicine and Therapeutics·2019· 3 citedOpen Access
389 Severe Vitamin K-Dependent Coagulopathy Associated With Contaminated Synthetic Cannabinoid Exposure in Illinois
Annals of Emergency Medicine·2018· 2 citedOpen Access
Child Passenger Restraint System Misuse in Rural Versus Urban Children
Pediatric Emergency Care·2016· 13 cited
102 Efficacy and Safety Performance of an Evidence-Based Cardiac Stress Testing Protocol in an Emergency Department Chest Pain Unit
Annals of Emergency Medicine·2016Open Access
Intubation Performance of Advanced Airway Devices in a Helicopter Emergency Medical Service Setting
Air Medical Journal·2016· 3 cited
253 Electronic Best Practice Advisories' Effectiveness in Detecting Sepsis in the Emergency Department
Annals of Emergency Medicine·2015· 4 citedOpen Access
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Frequent Co-authors

Myron Flickner(9), W. Niblack(7), Dragutin Petković(6), Jean C. Aldag(6), D. Lee(5), Ronald Barber(4), Marjorie A. Getz(4), Timothy J. Schaefer(4), Douglas L. Feinstein(4), Richard B. van Breemen(4), Israel Rubinstein(4), Paula Tanabe(3), Nicole Artz(3), Harpreet Sawhney(2), J. Ashley(2), David A. Steele(2), P. Yanker(2), W. Equitz(2), Zoran Martinovich(2), Yvette Whitehurst(2)