ERcast: Clinical Perspectives Podcast Preview
The summary below is from an episode of ERcast: Clinical Perspectives
Hymenoptera stings range from benign local reactions to anaphylaxis and venom-mediated systemic toxicity, and the key bedside task is separating dramatic swelling from true high-risk physiology. Point-of-care ultrasound can become a primary imaging tool in resource-limited settings when transport, radiology, and lab access are delayed.
Hymenoptera Stings and Envenomation
- Fire ant sting pattern: Fire ant stings classically cluster on the feet and lower legs and evolve into sterile white pustules within 24 hours, a high-yield clue that helps avoid unnecessary antibiotics or drainage.
- Large local reaction risk: Large local swelling after a bee or wasp sting can look impressive but is not predictive of future anaphylaxis, a distinction that prevents overcalling allergy severity.
- Anaphylaxis bedside definition: True anaphylaxis is defined by involvement of two organ systems, so hives plus gastrointestinal symptoms qualify even without airway compromise or frank wheeze.
- Epinephrine first priority: Intramuscular epinephrine comes before IV access or adjunctive medications when systemic allergic symptoms appear. We get into the common delay points in the episode.
- Venom toxicity red flags: Multiple stings can cause venom-mediated systemic toxicity independent of allergy; dark urine, altered mental status, hypotension, rhabdomyolysis, or renal injury should trigger escalation.
- Stinger removal principle: For bee stings, speed matters more than technique because most venom is delivered quickly; scraping or tweezers are both reasonable if the stinger comes out promptly.
Global Health POCUS Training
- Ultrasound as force multiplier: POCUS can dramatically expand diagnostic capacity where CT, formal radiology, or reliable labs are delayed, and in some rural settings it becomes the primary imaging modality.
- Needs-based curriculum design: Sustainable ultrasound training starts with local disease burden, workflows, and technology limits rather than importing a one-size-fits-all curriculum from U.S. practice.
- Train the trainer model: The durable win is local faculty ownership, with Kenyan clinicians progressing from learners to independent ultrasound educators. We walk through how that transition was built in the chapter.
- Operational barriers on the ground: Broken probes, remote image review problems, time-zone gaps, and staffing constraints shape what education programs can realistically sustain in resource-limited environments.
- Humility in global practice: Visiting faculty may know emergency medicine and ultrasound, but local clinicians are the experts in regional disease patterns, cultural dynamics, and resource navigation.
- Resource-limited teaching mindset: A useful teaching move is to reframe standard cases for single-coverage or rural practice, forcing learners to rethink transfer decisions, diagnostics, and procedural priorities.
Subscribe to ERcast: Clinical Perspectives to listen to the episode.
References:
- Bilò MB. Anaphylaxis caused by Hymenoptera stings: from epidemiology to treatment. Allergy. 2011;66 Suppl 95:35-37. PMID: 21668850
- Herness J, Snyder MJ, Newman RS. Arthropod Bites and Stings. Am Fam Physician. 2022;106(2):137-147. PMID: 35977137
- Rahimian R, Shirazi FM, Schmidt JO, Klotz SA. Honeybee Stings in the Era of Killer Bees: Anaphylaxis and Toxic Envenomation. Am J Med. 2020;133(5):621-626. PMID: 31715166
- Sturm GJ, Boni E, Antolín-Amérigo D, et al. Allergy to stings and bites from rare or locally important arthropods: Worldwide distribution, available diagnostics and treatment. Allergy. 2023;78(8):2089-2108. PMID: 37191880
- Wanandy T, Mulcahy E, Lau WY, Brown SGA, Wiese MD. Global View on Ant Venom Allergy: from Allergenic Components to Clinical Management. Clin Rev Allergy Immunol. 2022;62(1):123-144. PMID: 34075569
Faculty
- Brett Murray, MD
Dr. Murray is an Emergency Medicine physician practicing at a busy community trauma center. After attending Boston University School of Medicine, he completed his residency training at Brown University / Rhode Island Hospital, where he also served as Chief Resident from 2020 – 2021. His clinical interests center on medical education, performance science, and Emergency Medical Services.
- Anne Steckowych, APRN
Emergency medicine is in Anne’s blood; her father has been an Emergency Medicine physician for the last 30 years. After earning her nursing degree from the University of New Hampshire (UNH) in 2018, Anne worked as an EMT at her local fire department, gaining practical experience that prepared her for five years as a nurse in the emergency department. She eventually returned to UNH to become an NP and has spent the last 8 years in the same ED, building relationships with a clinical team dedicated to providing the best possible patient care. Outside of the hospital, she’s usually skiing, hiking, or running in the New Hampshire hills. ERcast is her first podcast, and she’s thrilled to be part of the Hippo team.
- Geoffrey Comp, DO, FACEP
Dr. Comp is an Associate Program Director for the Creighton University / Valleywise Health Emergency Medicine Residency Program in Phoenix. A clinician-educator at heart, Geoff spends his time mentoring the next generation of Emergency Medicine residents and advocating for better ways to teach and learn medicine. His professional world revolves around wilderness medicine, clinician wellness, and finding innovative ways to bridge the gap between theory and the bedside. When he isn’t in the ED or the classroom, you’ll likely find him combining his love for medicine with his passion for the outdoors, always looking for a new trail to explore or a new way to collaborate with fellow clinicians.
- Matthew Hall, CRNP
Matthew started his career as an ER nurse and part-time flight nurse at the University of Alabama at Birmingham. After graduating from NP school, he continued in the Department of Emergency Medicine at UAB as an NP, eventually serving as the clinical educator for the APP team. Matthew joined Hippo as a medical editor for ERcast in 2023 and, in 2025, moved into the role of clinical manager and senior editor. He lives in a small town outside of Birmingham, Alabama, with his wife, two children, three dogs, and a small flock of chickens.
- Shirley Shao, MD
- Samuel Luke Burleson, MD
