REBEL Cast

REBEL Rundown Key Points Mastery Learning: A unique educational framework focusing on achieving high competence with minimal variability among learners. Deliberate Practice: Involves learner-driven improvement, guided by expert feedback and breaking skills down into micro steps. Psychological Safety: Essential in mastery learning, allowing open feedback without fear or shame, enhancing growth. Embrace the productive struggle! Practice to Prevent Skill Decay and Improve Clinically: Application of mastery learning principles helps maintain high proficiency levels in both common and rare procedures. Click here for Direct Download of the Podcast. Previously Covered and Related Content: REBEL MIND: The Dunning-Kruger EffectREBEL MIND: Growth vs Fixed Mindset Introduction Welcome back to Rebel MIND, the podcast where we sharpen the person behind the practitioner. MIND stands for Mastering Internal Negativity during Difficulty. This series emphasizes productivity, provider performance, and team optimization to ensure we are at our best during high-pressure situations. In this episode, host Dr. Kim Bambach chats with master educator Dr. Jennifer Yee about the science of performance through mastery learning and deliberate practice. Jennifer Yee, DO is an associate residency program director for OSU Emergency Medicine, the OSU EM director for assessment and evaluation, and an associate professor of emergency medicine. She is from Akron, Ohio and earned her bachelor degree from Ohio University and her medical degree through the Ohio University College of Medicine. Her residency training was completed through Summa Akron City Hospital. After serving as chief resident, she completed a simulation medicine fellowship at Summa.She completed Northwestern’s Designing and Implementing Simulation-Based Mastery-Learning Curricula, as well as Ohio State’s Master of Art’s program in Biomedical Education. She established a mastery-based procedural curriculum for OSU’s EM residency program before creation of an institution-wide mastery-based central venous catheter (CVC) curriculum for all housestaff expected to place CVCs during their clinical training. Cognitive Question How can use the principles of mastery learning as better benchmark for learning, performance, and patient safety? How can we practice deliberately? What is Mastery Learning? Unlike traditional clinical training, which is time-bound (e.g., “you are competent after a 3-year residency” or “after 10 chest tubes”), Mastery Learning is outcome-bound. The goal is to get every single learner from their unique baseline to an identical, objectively high level of performance with minimal variation. In this framework, learners start with a pre-brief, followed by baseline assessment, targeted debrief, deliberate practice, and a final evaluation using a checklist with a strict minimum passing standard (often set via methods like the Mastery Angoff). The mastery learning framework has been shown to improve patient safety.The Northwestern Central Line Study: Research demonstrated that requiring residents to achieve a set benchmark on a simulator prior to clinical performance led to fewer needle passes, a decrease in mechanical complications (such as accidental arterial punctures), and a subsequent reduction in catheter-associated infection rates in the intensive care unit.High-Acuity, Low-Occurrence (HALO) Procedures: Studies have demonstrated that for rare, critical procedures like emergency cricothyrotomies or transvenous pacing, baseline testing shows that very few trainees can meet a standard passing score initially. However, following targeted simulation training and deliberate practice, 100% of participants successfully achieved the minimum standard required to perform the procedure competently. The Anatomy of Deliberate Practice We often assume experience or confidence equals competence, but humans are notoriously poor self-assessors (plug for our Dunning-Kruger episode!). True deliberate practice isn’t just repeating a task for 10,000 hours; it is purposeful, learner-driven micro-skill improvement guided by an expert coach.High-Quality Feedback: Avoid vague phrases like “good job” or “read more.” Effective coaching relies on strictly objective, real-time observations (e.g., “I am watching your needle angle. If you enter the skin more steeply, you will hit the vessel faster”).Embrace a Growth Mindset: Stripping away your ego to be silently watched and critiqued is inherently awkward. Normalize deliberate practice to create psychological safety. Overcoming this requires building an environment centered on patient safety, where baselines are treated as data points rather than judgments. True growth happens with the “productive struggle”.Adaptive Expertise: True mastery means moving past a rigid checklist. It requires learners to understand the reasoning behind their actions and anticipate next steps, complications, and plot twists in real time. Immediate Action Steps for Your Next Shift **Reflect on Personal Goals**: Identify specific clinical skills you wish to improve and set objectives. **Seek Expert Feedback**: Find a mentor or coach for guided practice and objective feedback on your skills. **Cultivate Psychological Safety**: Foster an environment where discussing mistakes and receiving feedback is viewed as growth rather than criticism. **Practice Adaptively**: Introduce scenarios with atypical anatomy, complications, plot twists to better prepare for real-world complexity. Conclusion By focusing on specific skill improvement and welcoming constructive feedback, clinicians can build competence and confidence, ultimately improving performance and patient safety. Effective mastery learning hinges on creating psychologically safe learning environments, engaging in focused deliberate practice, and leveraging expert feedback. This approach can be applied to clinical procedural excellence as well as many other skills, including communication and team dynamics. Clinical Bottom Line Mastery learning is an outcome-bound framework to reach a high standard of performance and deliberate practice is the tool that can help you achieve that high performance through expert feedback. Further Reading Barsuk JH, et al.Dissemination of a simulation-based mastery learning intervention reduces central line-associated bloodstream infections. BMJ Quality & Safety. Sep 2014.PMID: 24632995Klein MR, et al.Developing simulation-based mastery learning curricula for emergency medicine skills training. AEM Education and Training. Jun 2025.PMID: 40521339 Meet the Authors Kim Bambach, MD Assistant Professor of Emergency Medicine The Ohio State University Wexner Medical Center, Columbus, OH Jennifer Yee, DO Associate Professor of Emergency Medicine, Associate Program Director The Ohio State University Wexner Medical Center, Columbus, OH Showing Slide 1 of 2 The post REBEL MIND – Mastery Learning and Deliberate Practice appeared first on REBEL EM - Emergency Medicine Blog.

REBEL Rundown Key Points Building Resilience: Rebel MIND, in partnership with Arena Labs, introduces a science-based performance coaching platform specifically tailored for healthcare professionals, focusing on stress management and burnout prevention. Personal Insights: Jackie Penn shares her journey from exercise science to digital coaching, highlighting the importance of tailored coaching in high-pressure environments like healthcare. Clinician-Centric Approach: Understanding unique challenges faced by ER doctors, the program provides practical tools for stress and transition management, improving both professional and personal life balance. Revolutionary Wearables: Utilizing wearables, the program offers objective feedback on recovery and health metrics, allowing personalization of strategies to enhance clinician well-being. Click here for Direct Download of the Podcast. Introduction Welcome back to REBEL MIND, where MIND stands for Mastering Internal Negativity during Difficulty. Here we sharpen the person behind the practitioner by focusing on things that improve our performance, optimizing team dynamics and the human behavior that embodies the hidden curriculum of medicine. In this episode, we’re excited to continue collaboration with Arena Labs, where host Dr. Marco Propersi interviews Jackie Pen, Heading of Performance Coaching at Arena Labs. Arena Labs is helping us measure healthcare performance through innovative programs designed to combat burnout and enhance personal wellness using data-driven strategies. Previously Covered on REBEL MIND: Performance Under Pressure – What Medicine Can Learn from Elite Teams Cognitive Question How do specific performance coaching strategies and tools assist healthcare professionals, particularly those in emergency medicine, in managing stress and preventing burnout effectively? Why This is Important Burnout among healthcare workers is a growing concern, especially in such high-pressure environments as emergency and intensive care units. The collaboration with Arena Labs brings forth a vital focus on using data and coaching to build resilience among medical professionals. How This Applies to the Emergency Department or ICU? In the chaotic and high-stakes environment of the ED/ICU, healthcare professionals are often required to make split-second decisions under pressure while managing emotional stress. This necessitates not just clinical acumen but also strong emotional resilience and stress management skills. Performance coaching provides the tools and frameworks to enhance these skills, offering strategies like the de-stress breath and transition protocols to help clinicians navigate between high-pressure situations efficiently. These tools are designed to not only improve their professional performance but also ensure they are emotionally present for their personal lives, ensuring a healthier work-life balance. Things You Can Do on Your Next Shift Practice the De-stress Breath: Before moving from one critical case to another, take a moment to take two inhales through the nose followed by an extended exhale, helping to reset your nervous system by activating your parasympathetic nervous system.Implement a Transition Protocol: Choose a point in your journey home to mentally switch from clinician to family member, helping you to be more present outside of work.Optimize Your Nutrition and Rest: Even small changes during your shift, like meals that promote easy digestion or quick physical activities, can make a significant difference in your energy levels.Engage with Wearables: If possible, use wearables to monitor your physiological responses, helping tailor personalized strategies for your shifts Where to Learn More Intrigued by the possibilities this partnership offers? You can explore more by visiting Arena Labs’ website here. Also, check out the comprehensive coaching program available, designed specifically for healthcare providers looking to enhance their well-being and performance. Clinical Bottom Line In an era where burnout is pervasive, our collaboration with Arena Labs offers a beacon of hope for healthcare workers. By leveraging cutting-edge data insights and practical coaching, this partnership aims to redefine healthcare wellness, fostering a sustainable, resilient workforce that’s equipped to navigate the pressures of modern medicine. Join us in this journey towards enhanced well-being and workforce empowerment, ensuring that those who care for us are also cared for. Meet the Authors Marco Propersi Co-Editor-in-Chief Vassar Brothers Medical Center, Poughkeepsie, NY Jackie Pen Head of Performance Coaching Arena Labs Showing Slide 1 of 2 The post REBEL MIND: The Power of Performance Coaching in Medicine appeared first on REBEL EM - Emergency Medicine Blog.

REBEL Rundown Key Points NIV = Support without a tube: CPAP, BiPAP, and HFNC improve oxygenation and reduce the work of breathing. CPAP = Continuous pressure: Best for hypoxemic patients (e.g., pulmonary edema, OSA). BiPAP = Two pressures (IPAP/EPAP): Great for hypercapnic failure (e.g., COPD, obesity hypoventilation). HFNC = Heated, humidified high flow: Reduces effort, improves comfort, and enhances oxygen delivery. Supportive, not definitive: NIV stabilizes patients while the underlying cause is treated. Click here for Direct Download of the Podcast. Introduction Non-invasive ventilation (NIV) refers to respiratory support provided without endotracheal intubation. The most common modalities include continuous positive airway pressure (CPAP), bilevel positive airway pressure (BiPAP), and high-flow nasal cannula (HFNC). These therapies aim to improve oxygenation, reduce the work of breathing, and potentially prevent invasive mechanical ventilation. CPAP and BiPAP CPAP delivers a single, continuous pressure during inspiration and expiration. This pressure (commonly 5–10 cm H₂O) helps recruit atelectatic alveoli, reduce shunt, and improve oxygenation. It is commonly used for conditions like pulmonary edema, obstructive sleep apnea, or mild hypoxemia without significant ventilatory failure.BiPAP alternates between two pressures:Inspiratory positive airway pressure (IPAP), augments tidal volume and unloads inspiratory muscles.Expiratory positive airway pressure (EPAP), maintains alveolar recruitment and improves oxygenation.The differential between IPAP and EPAP is critical for reducing hypercapnia in patients with COPD exacerbations or acute hypercapnic respiratory failure.IndicationsCPAP: hypoxemia without major ventilatory failure (e.g., cardiogenic pulmonary edema, atelectasis, OSA).BiPAP: hypercapnia with increased work of breathing (e.g., COPD exacerbation, neuromuscular weakness, obesity hypoventilation).A helpful way to conceptualize CPAP and BiPAP is through the hairdryer analogy. Imagine placing a hairdryer in your mouth: Clinical Considerations Masks can be uncomfortable, impair secretion clearance, and limit oral intake.Some patients require sedation to tolerate NIV, but this carries risks in patients with unprotected airways.NIV is thus a high-stakes intervention requiring close monitoring.Common starting dose to understand titration, but start at the level appropriate for your patient: IPAP 10 cm H₂O / EPAP 5 cm H₂O (“10/5”) and are titrated:Increase IPAP to improve tidal volume and CO₂ clearance.Increase EPAP to recruit alveoli and improve oxygenation.Both may be raised simultaneously if the patient is both hypoxemic and hypercapnic. High-Flow Nasal Cannula (HFNC) H: Heated & humidified – improves mucociliary clearance, prevents airway drying, and enhances tolerance. I: Inspiratory flow – high flow meets or exceeds patient demand, reducing respiratory rate and effort.F: Functional residual capacity – modest generation of positive end-expiratory pressure (PEEP), promoting alveolar recruitment.L: Lighter – generally more comfortable and less restrictive than mask-based NIV.O: Oxygen dilution – minimizes entrainment of room air, delivering higher and more predictable FiO₂.W: Washout – flushes anatomical dead space, reducing CO₂ rebreathing.HFNC delivers heated, humidified oxygen at high flow rates (30–60 L/min) through wide-bore nasal prongs. A mnemonic, H-I-F-L-O-W, helps summarize its mechanisms:Indications: Traditionally used for acute hypoxemic respiratory failure (e.g., pneumonia), HFNC is increasingly studied for hypercapnic failure as well, with trials suggesting non-inferiority to BiPAP in select populations. Post Peer Reviewed By: Marco Propersi, DO (Twitter/X: @Marco_propersi), and Mark Ramzy, DO (X: @MRamzyDO) Show Notes Syed Moosi Raza, MD PGY 3 Internal Medicine Resident Cape Fear Valley Internal Medicine Residency Program Fayetteville NC Aspiring Pulmonary Critical Care Fellow Showing Slide 1 of 1 Your Deep-Dive Starts Here REBEL Core Cast 1.0 – The Intro REBEL EM-ers: Salim, Jenny and I would like to announce ... Read More Showing Slide 1 of 2 The post REBEL Core Cast 148.0–Demystifying Non-Invasive Ventilation & HiFlow appeared first on REBEL EM - Emergency Medicine Blog.

REBEL Rundown Key Points Peak vs. Plateau Pressures: PIP reflects total airway resistance and compliance, while Pplat isolates alveolar compliance—elevations in both suggest decreased lung compliance (e.g., ARDS, pulmonary edema, pneumothorax). PEEP Protects Alveoli: Maintains alveolar recruitment and prevents collapse; typical range 5–8 cmH₂O, but higher levels may benefit moderate–severe ARDS. Driving Pressure (ΔP = Pplat − PEEP): Lower ΔP reduces atelectrauma and improves outcomes; optimize by adjusting PEEP thoughtfully. Prevent VILI: Keep Pplat < 30 cmH₂O, use low tidal volumes (6 mL/kg IBW), and monitor for barotrauma, volutrauma, atelectrauma, and biotrauma. Evidence-Based Practice: ARDSNet and subsequent trials confirm that lung-protective ventilation—low Vt, limited pressures, and individualized PEEP—improves survival in ARDS. Click here for Direct Download of the Podcast. Introduction This episode reviews essential ventilator pressures and how to interpret them during ICU rounds. Under Pressure Peak Inspiratory Pressure (PIP)Definition: Total pressure required to deliver a breath.Reflects: Airway resistance + lung/chest wall compliance.Common Causes of ↑ PIP:Mucus pluggingBiting the endotracheal tubeKinked tubing or bronchospasmPlateau Pressure (Pplat)Definition: Alveolar pressure measured after an inspiratory hold.Reflects: Lung compliance (stiffness of lung tissue).When Both PIP & Pplat Are Elevated:→ Indicates poor compliance (e.g., ARDS, pulmonary edema, pneumothorax).Positive End-Expiratory Pressure (PEEP)Definition: Pressure remaining in airways at end-expiration to prevent alveolar collapse.Typical Range: 5–8 cmH₂O but needs to titrated to meet patient requirements Notes:Provides physiologic “glottic” PEEP in intubated patients.Using high PEEP strategy shows mortality benefit only in moderate–severe ARDS in meta-analysis.Driving Pressure (ΔP)Definition: ΔP = Pplat − PEEP.Reflects: Pressure needed to keep alveoli open during the respiratory cycle.Goal: Lower ΔP → less atelectrauma & improved outcomes.Optimize: Increase PEEP to reduce ΔP and alveolar cycling. Interpreting High PIP/High Pplat ↑ PIP & ↑ PplatInterpretation: ↓ ComplianceCommon Causes: ARDS, pulmonary edema, pleural effusion, pneumothorax↑ PIP & Normal/Low PplatInterpretation: ↑ Airway ResistanceCommon Causes: Mucus plug, bronchospasm, tube obstruction or biting Ventilator-Associated Lung Injury (VILI) Barotrauma:Mechanism: Excessive airway pressure damages alveoli.Prevention: Keep Pplat < 30 cmH₂O.Volutrauma:Mechanism: Overdistension from excessive tidal volumes.Prevention: Use low tidal volume ventilation (6 mL/kg ideal body weight).ARDSNet trial: 6 mL/kg → lower mortality compared to 12 mL/kg.Ideal Body Weight: Based on height and sex, not actual weight.Typical patient: Tidal Volume: 6–8 mL/kg IBWARDS: Tidal Volume: 4–6 mL/kg IBWAtelectrauma:Mechanism: Repeated opening/collapse of unstable alveoli.Prevention: Optimize PEEP to keep alveoli open and reduce driving pressure.Biotrauma:Mechanism: Inflammatory cascade (↑ IL-6, TNF-α) from mechanical injury.Effect: Can trigger systemic inflammation & multiorgan dysfunction.Prevention: Minimize all other forms of VILI. Post Peer Reviewed By: Marco Propersi, DO (Twitter/X: @Marco_propersi), and Mark Ramzy, DO (X: @MRamzyDO) Show Notes Joel Rios Rodriguez, MD PGY 3 Internal Medicine Resident Cape Fear Valley Internal Medicine Residency Program Fayetteville NC Aspiring Pulmonary Critical Care Fellow Showing Slide 1 of 1 Your Deep-Dive Starts Here It seems we can't find what you're looking for. The post REBEL Core Cast 147.0–Ventilators Part 5: Key Mechanical Ventilator Pressures & Definitions Made Simple appeared first on REBEL EM - Emergency Medicine Blog.

REBEL Rundown Introduction Welcome to this special edition of the REBEL Cast, where we unravel key highlights and educational insights from the IncrEMentuM Conference in Spain. This event is a cornerstone for advancing emergency medicine education, drawing esteemed speakers and participants from around the globe. As emergency medicine gains traction in Spain, this conference has become an essential platform for knowledge exchange and professional growth. Today, host Dr. Mark Ramzy shines a spotlight on three distinguished speakers: Dr. Jess Mason, Dr. Tarlan Hedayati, and Dr. Simon Carley, who shared their expertise and experiences at this transformative gathering last spring. Click here for Direct Download of the Podcast. What's IncrEMentuM? A new conference and a pivotal gathering for emergency medicine professionals worldwide, has become an essential platform for education, collaboration, and advocacy, especially in light of emergency medicine’s recent recognition as a specialty in Spain. The conference is praised for its outstanding production quality, engaging speakers, and its capacity to foster a global community of emergency care professionals. Pearls from Their IncrEMentuM 2025 Lectures Think about alternative diagnoses that could be driving the patient’s atrial fibrillationMaybe the atrial fibrillation is an adaptive response and slowing them down (whether chemically or electrically) may cause more harm than goodGet in the mental space before having to perform a High Acuity Low Occurrence (HALO) procedure and walk through each of the parts step by stepEMRAP has uploaded the video of the Resuscitative Hysterotomy here (Subscription required to watch)Like many things in critical care, a patient with a severe head injury requires you to do many little things very well (ie. reducing ICP increases by taking off the C-collar if able, positioning the patient appropriately, knowing when to use certain medications) See you in Spain! The upcoming conference aims to gather world-class educators once more and promises an enriching experience for all attendees. Drs. Tarlan Hedayati, Jess Mason and Simon Carley, along with many others, will be there at the event. For more information on the IncrEMentuM Conference and to register, visit their website! See you there! Tarlan Hedayati, MD Vice Chair of Education and Associate Program Director Cook County, Chicago, IL Jess Mason, MD Associate Professor of Emergency Medicine Vanderbilt University, Nashville, TN Simon Carley, MD, PhD Professor of Emergency and Dean of the Royal College of Emergency Medicine Manchester, England Showing Slide 1 of 3 Your Deep-Dive Starts Here REBEL Core Cast 110.0 – On Shift Learning Pearls Take Home Points: Patients with recent onset atrial fibrillation can ... Read More Showing Slide 1 of 2 The post REBEL CAST – IncrEMentuM26 Speaker Spotlight : Drs. Tarlan Hedayati, Jess Mason and Simon Carley appeared first on REBEL EM - Emergency Medicine Blog.

REBEL Rundown Key Points Fluid Choice Matters: Plasma-Lyte, a balanced crystalloid, corrected acidosis faster than normal saline in severe DKA patients, with no increase in adverse events. Chloride Load Concerns: Normal saline’s high chloride content can worsen acidosis, potentially slowing bicarb recovery even after the anion gap closes. Study Design Strengths: The SCOPE-DKA trial was a cluster crossover, open-label RCT, protocolizing all variables except fluid type, enhancing the reliability of its findings. Base Excess & Strong Ion Difference: Base excess/deficit and strong ion difference are valuable but underutilized tools for assessing acid-base status—don’t rely solely on pH or bicarb. Limitations & Next Steps: The study did not include lactated Ringer’s, and fluid rates were left to clinical discretion. More research, including three-arm trials, is needed for definitive guidance. Click here for Direct Download of the Podcast. Introduction Managing diabetic ketoacidosis (DKA) requires careful consideration of fluid therapy, especially in severe cases. In part two of our REBEL Cast DKA series, we shifted from insulin strategies to fluid choice in severe DKA, diving into the SCOPE-DKA trial—a cluster, crossover, open-label RCT from Australia. While normal saline (NS) is commonly used, concerns about its high chloride content and impact on acidosis have sparked growing interest in balanced solutions like Plasma-Lyte. Clinical Question Does the fluid you choose affect how quickly acidosis resolves in DKA? IV Fluid Composition Clinical Bottom Line Plasma-Lyte showed a modest but meaningful benefit over normal saline in resolving metabolic acidosis in patients with severe DKA. Though safety profiles were similar, the more balanced electrolyte composition of Plasma-Lyte helped normalize acid-base status slightly faster—without worsening ketosis. While this won’t revolutionize care overnight, it’s one more step toward physiologic resuscitation in DKA. Understanding fluid composition and its impact on acid-base balance is crucial for optimal patient care. Post Peer Reviewed By: Marco Propersi (Twitter/X: @Marco_propersi), and Kim Bambach, MDShow Notes By: Mark Ramzy, DO Authors Mark Ramzy, DO Co-Editor-in-Chief RWJBH / Rutgers Health, Newark, NJ Frank Lodeserto Associate Editor Cape Fear Valley Medical Center, Fayetteville NC Showing Slide 1 of 2 Your Deep-Dive Starts Here It seems we can't find what you're looking for. REBEL Castis the blogs audio version. The podcast typically starts by setting a clinical stage with a pertinent clinical question, followed by a discussion of the paper with pertinent results, strengths, limitations, and further discussion. Finally, we end every podcast with clinical take home points from the papers being reviewed. If there are papers you think we should evaluate, email them to srrezaie@gmail.com. REBEL EM stands for Rational Evidence Based Evaluation of Literature in Emergency Medicine. We cover a myriad of topics, primarily focusing on evidence-based clinical topics.At its core, evidence-based medicine (EBM) incorporates clinical judgment, relevant scientific evidence, and patient values/preferences. Research and scientific evidence help inform care but should not dictate care of patients.With the constant influx of new published research, it makes it difficult to stay current with the latest and greatest. REBEL EM was created October 2013 in an effort to cut down knowledge translation of research to clinical application (Bench to Bedside), using a structured critical appraisal method of evaluation. REBEL Core Cast – DKA: Beyond the Basics Part 2 – SCOPE DKA-Trial Mark Ramzy October 21, 2025 No Comments Managing diabetic ketoacidosis (DKA) requires careful consideration of fluid therapy, especially in severe cases. In part two of our REBEL Cast DKA series, we shifted from insulin strategies to fluid choice in severe DKA, diving into the SCOPE-DKA trial—a cluster, crossover, open-label RCT from Australia. While normal saline (NS) is commonly used, concerns about its high chloride content and impact on acidosis have sparked growing interest in balanced solutions like Plasma-Lyte. Read More » « Page1 Page2 Page3 Page4 Page5 » The post REBEL Core Cast – DKA: Beyond the Basics Part 2 – SCOPE DKA-Trial appeared first on REBEL EM - Emergency Medicine Blog.

REBEL Rundown Key Points Don’t chase perfect numbers: Adequate and safe is often better than “perfect but harmful.” Oxygenation levers: Start with FiO₂ and PEEP, but remember MAP is the true driver. Ventilation levers: Adjust RR and TV, tailored to underlying physiology. Watch your obstructive patients: Sometimes less RR is more. Click here for Direct Download of the Podcast. Introduction When you take the airway, you take the wheel and you now control the patient’s oxygenation and ventilation. In this REBEL Crit episode, Dr. Lodeserto and Dr. Acker walk through the physiology, ventilator strategies, and clinical curveballs that separate calm control from chaos at the bedside. The Two Pillars of Vent Management 1. Oxygenation — Getting O₂ InPrimary levers: FiO₂ (fraction of inspired oxygen) and PEEP (positive end-expiratory pressure).Real driver: Mean Airway Pressure (MAP) : the average pressure applied to the lungs across the entire respiratory cycle.Key physiology:Oxygen enters blood by diffusion down a concentration gradient.Adequate alveolar surface area is critical → PEEP keeps alveoli open, prevents collapse/reopen injury, and ensures FiO₂ delivery actually translates into effective oxygenation.MAP analogy: Just as mean arterial pressure drives perfusion, mean airway pressure drives oxygenation. Prolonged inspiratory time or sustained pressure (e.g., APRV, inverse I:E) can raise MAP.Risks: Excessive pressure/volume can cause barotrauma or volutrauma. 2. Ventilation — Getting CO₂ OutPrimary levers: Tidal Volume (TV) and Respiratory Rate (RR).Minute Ventilation = RR × TV.Mechanism: Ventilation removes CO₂ through bulk convection (movement of air in and out).Disease-specific strategies:Obstructive Disease (COPD / Asthma)RR ↓ to allow more time for exhalation.Ensure expiratory flow = inspiratory flow → prevents air trapping.If not equal → auto-PEEP → increased intrathoracic pressure → ↓ preload, risk of hypotension, cardiac arrest, or pneumothorax.Metabolic AcidosisRR ↑ to blow off CO₂ and buffer acidosis.ARDSTidal volume limited to 4–6 mL/kg IBW to minimize ventilator-induced lung injury.RR becomes the main adjustment knob.Exception: in obstructive lung disease, patients need extra time to exhale (I:E may be 1:4–1:6). Why This Matters Ventilator management is part science, part art. Understanding the physiology and knowing when to bend or break the rules helps protect patients from ventilator-induced injury and improves outcomes. Post Peer Reviewed By: Marco Propersi, DO (Twitter/X: @Marco_propersi), and Mark Ramzy, DO (X: @MRamzyDO)Show Notes By: Rubén Tapia-Bucheli, M.D. Guest Contributors Rubén Tapia-Bucheli, M.D. 3rd Year Internal Medicine Resident Cape Fear Valley Internal Medicine Residency Program Fayetteville NC Aspiring Pulmonary Critical Care Fellow Showing Slide 1 of 1 Your Deep-Dive Starts Here It seems we can't find what you're looking for. The post REBEL Core Cast 143.0–Ventilators Part 3: Oxygenation & Ventilation — Mastering the Balance on the Ventilator appeared first on REBEL EM - Emergency Medicine Blog.

REBEL Rundown Key Points Master the 3 Types of BreathsControl, Assist, and Spontaneous — know the difference before tackling ventilator modes. Breath Delivery: Volume vs. PressureVolume-Targeted = fixed volume → monitor pressure Pressure-Targeted = fixed pressure → monitor volume Lung Compliance = Pressure-Volume RelationshipVolume mode: ↑ pressure = ↓ compliance (stiff lungs)Pressure mode: ↓ tidal volume = ↓ compliance Click here for Direct Download of the Podcast. Introduction For many medical residents, the ICU can feel like stepping into a pressure cooker. At the heart of that stress often lies one intimidating machine: the ventilator. Rather than diving headfirst into complex ventilator modes, this episode lays a critical foundation by breaking down the basic building blocks of mechanical ventilation, something every clinician should master before moving on to more advanced concepts. Once you know the 3 types of breaths and how those breaths are delivered, you can more easily understand most of the mechanical ventilator modes. The 3 Types of Breaths To simplify things, we use a pull-up analogy to explain the types of ventilator breaths: The 3 Types of Breaths…It's Like Breath Delivery: Volume vs. Pressure Once you know the type of breath, the next key concept is how it’s delivered:1. Volume-Targeted DeliveryThe ventilator delivers a fixed tidal volume (e.g., 400 mL) with each control or assist breath.What to monitor: Pressure. As lung compliance worsens, pressure increases.Risk: Barotrauma if the pressure becomes too high.2. Pressure-Targeted DeliveryThe ventilator delivers air to a preset pressure (e.g., 15 cm H₂O).What to monitor: Tidal volume. As compliance drops, so does delivered volume.Adjustment: Modify pressure to maintain appropriate ventilation. Putting It All Together: Lung Compliance The relationship between pressure and volume is described by compliance: Compliance = Δ Volume / Δ PressureIn volume mode:Rising pressure to achieve the same volume = decreased compliance (stiff)Decreasing pressure to achieve the same volume = increased compliance (loose)In pressure mode:Dropping tidal volume at a constant pressure = decreased compliance (stiff)Rising tidal volume at a constant pressure = increased compliance (loose) Clinical Bottom Line Before tackling advanced ventilator modes, master these foundational concepts:The three breath typesThe two delivery methodsThe role of lung complianceOnce you’ve got these down, the rest of mechanical ventilation becomes far easier to understand.Stay tuned for Part 2, where we’ll build on this foundation and unpack the most commonly used ventilator modes. Post Peer Reviewed By: Marco Propersi, DO (Twitter/X: @Marco_propersi), and Mark Ramzy, DO (X: @MRamzyDO)Show Notes By: Nicole Ebalo, DO Guest Contributors Eric Acker, MD Internal Medicine, Chief Resident, Cape Fear Valley Medical Center, Fayetteville NC Nicole Ebalo, DO Internal Medicine, Chief Resident, Cape Fear Valley Medical Center, Fayetteville NC Showing Slide 1 of 2 Your Deep-Dive Starts Here It seems we can't find what you're looking for. The post REBEL Core Cast 141.0–Ventilators Part 1: Simplifying Mechanical Ventilation — Types of Breathes appeared first on REBEL EM - Emergency Medicine Blog.