The Chief Complaint vs OnScene

The Chief Complaint app now includes access the new ESCAVO Clinical Community, a forum where clinicians can exchange ideas, ask questions and collaborate on sepsis and other clinical topics. How would you like to walk into the ER confident that you knew what to do, no matter what comes through the door? The Chief Complaint app uses an algorithmic approach to over 50 of the most common complaints encountered in emergency medicine. Never feel lost or overwhelmed again, not knowing what the next step in the work-up is. Not sure what tests to order or if the patient can go home? The Chief Complaint helps you answer all those questions and more! - Algorithm based approach to the most common emergency medicine complaints - Based on the #1 bestselling emergency medicine clinical guide "The Chief Complaint" - Used by the residents of LA County + USC emergency medicine program, one of the top emergency medicine programs in the world - Color coded by organ system for easy navigation - Exhaustively referenced to the most important studies and articles in emergency medicine (over 400 citations!) with direct links to PubMed abstracts for easy access to original sources - Over 60 high resolution clinical management and decision support algorithms - Direct subject-specific links to EM:RAP, Essentials of Emergency Medicine and theNNT.com for further resources and deeper dives on all subjects - Journal club feature allows you to dive deeper into the evidence basis of your decisions - Peer reviewed by leading physicians in emergency medicine - Important medical calculators and scores commonly used in the ER - Emergency medicine drug guide easily accessible right from the content pages - All content, including treatment algorithms, is built-in, network access is only required for content updates - Automatic content updating keeps app's contents constantly up to date free of charge The Chief Complaint is an invaluable resource for doctors, residents, medical students, nurses and other healthcare professionals working in emergency medicine and other acute care settings. Please send your feedback, questions or bug reports to info@escavo.com, we'd love to hear from you! Reviews: "The Chief Complaint is simply indispensable, carry it with me every shift. Excellent algorithms, concise, practical, clinically relevant explanations citing the current best-evidence for management decisions; without doubt Chief Complaint it is THE pocket Emergency Medicine reference to have with you at the bedside." -Manuel Montano, MD, PGY-3, LAC+USC EM Residency "...is really top notch. I really like how it organizes complaints in a flow pattern type way. This has allowed me to quickly adjust my decision making and makes it actually useful when I feel super pressured at work. The further detail located later has been helpful to one, get some good initial learning in and two, look to the resources cited for more in depth discussion." -David Benaron, UCSD Resident "Chief complaint is AWESOME...I think every single intern in the country should have one of these...SO COOL!" -James Grieme, UCSD Resident "The aptly named Chief Complaint is simply excellent. I really like the way it is laid out by cc and it's concise enough to be useful on a regular basis. I take it with me to every shift and would highly recommend it to anyone looking for a streamlined, functional, real-time guide for working up patients in the ED" -Nick Aldridge, UCSD Resident "... really something totally new in the medical education world. This app does something many have tried to do but few have achieved, which is to create an orienteering guide to the med-ed landscape while launching your thought processes AT THE BEDSIDE when confronted with a new undifferentiated and undiagnosed patient." -William "Billy" Mallon MD, Foreword

OnScene is your scenario-based study coach for the NREMT EMT cognitive certification exam — designed to fit between calls, during shift changes, and in the moments when a textbook is too much. Master the exam blueprint: • Scene Size-Up & Safety (15-19%) • Primary Assessment (39-43%) • Secondary Assessment (5-9%) • Patient Treatment & Transport (20-24%) • EMS Operations (10-14%) Inside OnScene: • 450 scenario-based questions across 11 study topics, weighted to the NREMT 5-domain blueprint • 140 spaced-repetition flashcards covering drug indications, dosages, age-banded vitals, and BLS algorithms • Full 60-question practice exam that mirrors the real Pearson VUE adaptive test • Detailed explanations on every question, grounded in the National EMS Education Standards 2021, Scope of Practice 2019, and 2025 AHA Guidelines for CPR & ECC • Streaks, XP, and 17 badges to keep your study habit on duty until test day Free vs. Full Access: Try the EMS Systems unit, 20 flashcards, and one practice topic for free. One-time unlock ($14.99) opens every topic, all 140 flashcards, and the full practice exam — no subscriptions, no ads. Built for: EMT-Basic students, EMR-to-EMT bridges, IFT crews retaking after lapsed certification, and fire academies running NREMT prep blocks. Official sources • NREMT EMT Examination Specifications: https://www.nremt.org/admin/getmedia/4cb170ab-35fa-4ec0-a76c-634847005bc4/EMT-Test-Plan_Public • National EMS Education Standards 2021 (NHTSA, hosted by NAEMSE): https://cdn.ymaws.com/naemse.org/resource/resmgr/files/ems_education_standards_2021.pdf • National EMS Scope of Practice Model 2019 incl. Change Notices 1.0 & 2.0 (NHTSA, hosted by NREMT): https://www.nremt.org/getmedia/d82edd97-1425-423f-954c-fdd63cf1daa3/National_EMS_Scope_of_Practice_Model_2019_Change_Notices_1_and-_2_August_2021 • 2025 AHA Guidelines for CPR & ECC (Highlights): https://cpr.heart.org/-/media/CPR-Files/2025-documents-for-cpr-heart-edits-posting/Resuscitation-Science/252500_Hghlghts_2025ECCGuidelines.pdf Disclaimer OnScene is an independent study aid based on the NREMT EMT Examination Specifications (2023 Practice Analysis), the National EMS Education Standards 2021, the National EMS Scope of Practice Model 2019, and the 2025 AHA Guidelines for CPR and ECC. It is not affiliated with, endorsed by, or sponsored by the NREMT, NHTSA, the American Heart Association, or any other organization.