WhiteBoard Medicine - Emergency And Critical Care

#245 ICU Pharmacology Explained | Sedation, Vasopressors & Fluids Made Simple

ICU pharmacology can feel overwhelming—sedation, vasopressors, fluids, and dozens of medications interacting in critically ill patients.
In this episode, we break down ICU pharmacology into three foundational domains that form the backbone of bedside critical care:
Sedation and analgesia (propofol, fentanyl, dexmedetomidine)
Vasopressors and inotropes (norepinephrine, vasopressin, epinephrine, dopamine, dobutamine)
Intravenous fluids (crystalloids, colloids, and fluid resuscitation strategies in shock)
This is not a comprehensive review of all ICU medications, but a practical, physiology-driven framework to help you understand how these therapies work together in real patients.
We focus on hemodynamics, perfusion, sedation strategies, and fluid management—with an emphasis on septic shock, respiratory failure, and emergency critical care applications.
🎥 Watch the full video version here:https://www.youtube.com/watch?v=bjvdOucsAQY
📚 Want to go deeper? Full ICU curriculum + study guides:• Downloadable PDF study guides• Mini-courses on shock, ventilation, and critical care• Practice questions for boards and bedside learning• Structured emergency critical care curriculum• Ad-free content
👉 https://www.patreon.com/c/WhiteBoardMedicine
👩‍⚕️ Who this episode is for:Medical students, residents, fellows, nurses, respiratory therapists, and practicing clinicians in emergency medicine and critical care.
⚠️ Podcast Disclaimer:This podcast is for educational purposes only and is not intended to provide medical advice. The views expressed are those of the hosts and do not represent any affiliated institutions. Clinical decisions should always be made based on individual patient circumstances, current evidence, and institutional protocols.

#244 Arterial Line Waveform Explained: Placement, Normal Waveform & Pulse Pressure Variation

In this episode of Whiteboard Medicine, we break down the fundamentals of arterial line monitoring and how to interpret the arterial pressure waveform at the bedside.
Arterial lines are one of the most powerful tools for managing critically ill patients in the ICU, emergency department, and operating room, but accurate interpretation requires understanding the underlying hemodynamic physiology. In this episode we walk through how arterial lines are placed, the key components of the normal arterial waveform, and how clinicians can use pulse pressure variation (PPV) to assess fluid responsiveness in mechanically ventilated patients.
Whether you are managing shock, titrating vasopressors, or evaluating hemodynamic instability, understanding arterial waveform physiology is essential for bedside decision making in critical care.
Topics covered in this episode include:
• Fundamentals of arterial line placement• Components of the normal arterial waveform• Systolic upstroke, dicrotic notch, and diastolic runoff• Causes of abnormal arterial waveforms• Pulse pressure variation (PPV) explained• Using PPV to assess fluid responsiveness• Practical bedside interpretation for ICU clinicians
Watch the full video version of this episode here:https://www.youtube.com/watch?v=jocAWm7RPig
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicine
Patreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Disclaimer:Whiteboard Medicine content is for educational purposes only and is intended for healthcare professionals and trainees. This content should not be considered medical advice and should not replace clinical judgment, institutional protocols, or consultation with qualified medical professionals.

#243 Everything You Need to Know About CRRT | CVVH, CVVHD, CVVHDF A Complete ICU Guide

Continuous Renal Replacement Therapy (CRRT) is one of the most important dialysis therapies used in the ICU for critically ill patients with acute kidney injury (AKI), septic shock, metabolic acidosis, and fluid overload.
In this complete ICU guide, we cover everything you need to know about CRRT, including:
• CRRT basics and core physiology• Indications for CRRT in the ICU• CRRT prescription fundamentals• Effluent dose (20–25 mL/kg/hr)• Ultrafiltration and net fluid removal• Dialysate vs replacement fluid• Transmembrane pressure and sieving coefficient• CVVH (convection-based CRRT)• CVVHD (diffusion-based CRRT)• CVVHDF (combined diffusion + convection)• Full modality comparison• CRRT vs intermittent hemodialysis (iHD)• CRRT vs SLED• When to choose each therapy
Core framework:
CVVH = convection (flow-driven clearance)CVVHD = diffusion (gradient-driven clearance)CVVHDF = both
CRRT = continuous, hemodynamically gentle dialysis ideal for unstable ICU patients.
If you work in emergency medicine, critical care, nephrology, or the ICU, this episode provides a clear and practical framework for understanding and prescribing continuous renal replacement therapy.
Designed for ICU nurses, residents, fellows, respiratory therapists, advanced practice clinicians, and physicians.
Master the mechanism — not just the machine settings.
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicine
Patreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Watch the full video version:https://www.youtube.com/@WhiteBoardMedicine
Disclaimer:This podcast is for educational purposes only and is not intended to provide medical advice, diagnosis, or treatment. The information discussed reflects general principles of emergency and critical care medicine and should not replace clinical judgment, institutional protocols, or individualized patient care decisions. Always consult appropriate medical professionals and guidelines when managing patients.

#242 CRRT Masterclass: Complete Guide to CVVH, CVVHD & CVVHDF + Full Comparison

Continuous Renal Replacement Therapy (CRRT) is one of the most important dialysis therapies in critical care and the ICU — yet many clinicians struggle to understand the differences between CVVH, CVVHD, and CVVHDF.
In this CRRT Masterclass, we provide a complete guide to:
• CVVH (convection-based CRRT)• CVVHD (diffusion-based CRRT)• CVVHDF (combined diffusion + convection)• CRRT physiology and mechanisms• CRRT prescription and dosing (20–25 mL/kg/hr)• Ultrafiltration and fluid removal• Dialysate vs replacement fluid• Effluent rate and clearance• Small vs middle molecule removal• Full comparison of CRRT modalities• CRRT vs intermittent hemodialysis (iHD)• CRRT vs SLED
We also explain when to choose each CRRT modality in patients with:
• Acute kidney injury (AKI)• Septic shock• Severe metabolic acidosis• Hyperkalemia• Multi-organ failure• Volume overload in the ICU
If you work in emergency medicine, critical care, nephrology, or the ICU, this episode will give you a clear and practical framework for prescribing and managing continuous dialysis at the bedside.
Designed for ICU nurses, residents, fellows, respiratory therapists, advanced practice clinicians, and physicians.
Master the mechanism — not just the machine settings.
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicine
Patreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Watch the full video version:https://www.youtube.com/@WhiteBoardMedicine
Disclaimer:This podcast is for educational purposes only and is not intended to provide medical advice, diagnosis, or treatment. The information discussed reflects general principles of emergency and critical care medicine and should not replace clinical judgment, institutional protocols, or individualized patient care decisions. Always consult appropriate medical professionals and guidelines when managing patients.

#241 CVVH vs CVVHD vs CVVHDF Explained | CRRT Modalities Comparison for the ICU

Continuous Renal Replacement Therapy (CRRT) can feel confusing — especially when trying to differentiate between CVVH, CVVHD, and CVVHDF. In this episode, we provide a clear, side-by-side comparison of all three modalities so you can understand how each works, when they are used, and how solute and fluid removal differ.
We break down convection vs diffusion, replacement fluid vs dialysate, ultrafiltration control, clearance efficiency, effluent dosing, and practical ICU decision-making. By the end of this episode, you’ll have a structured framework to confidently explain the differences between CVVH, CVVHD, and CVVHDF at the bedside.
This is a high-yield overview designed for emergency physicians, intensivists, residents, nurses, respiratory therapists, and advanced practice clinicians who want CRRT to finally “click.”
🎥 Watch the full YouTube video here:👉https://www.youtube.com/watch?v=FaAlplfPgL0
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicinePatreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Disclaimer: This podcast is for educational purposes only and is not medical advice. Clinical decisions should always be made based on individual patient circumstances, institutional protocols, and consultation with appropriate specialists.

#240 Continuous Venovenous Hemodialysis CVVHD Explained | ICU CRRT Deep Dive

Continuous Venovenous Hemodialysis (CVVHD) is a core modality of continuous renal replacement therapy (CRRT) — but many clinicians struggle to fully understand how diffusion-based clearance works in the ICU.
In this episode, we break down CVVHD step-by-step, including dialysate flow, solute diffusion, ultrafiltration control, effluent rates, clearance principles, and how CVVHD differs from CVVH and CVVHDF. We focus on practical bedside physiology so you can clearly understand how toxins are removed, how fluid balance is controlled, and how settings impact patient care.
This episode is designed for emergency physicians, intensivists, trainees, nurses, respiratory therapists, and advanced practice clinicians who want a structured, physiology-first framework for CRRT.
If CRRT has ever felt overwhelming, this deep dive will simplify CVVHD into clear, actionable concepts.
🎥 Watch the full YouTube video here:👉https://www.youtube.com/watch?v=ymfP1RxqOuw
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicinePatreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Disclaimer: This podcast is for educational purposes only and is not medical advice. Clinical decisions should always be made based on individual patient circumstances, institutional protocols, and consultation with appropriate specialists.

#239 Continuous Venovenous Hemodiafiltration CVVHDF Explained | ICU CRRT Deep Dive

Continuous Venovenous Hemodiafiltration (CVVHDF) is one of the most complex — and most misunderstood — modalities of continuous renal replacement therapy (CRRT). In this episode, we break down CVVHDF from the ground up, including diffusion vs convection, dialysate and replacement fluid, solute clearance, ultrafiltration control, and how this modality differs from CVVH and CVVHD.
We walk through ICU-relevant physiology, clinical decision-making, and practical bedside considerations to help emergency physicians, intensivists, residents, nurses, and advanced practice clinicians understand how CVVHDF actually works in critically ill patients.
If CRRT has ever felt confusing, this episode brings it together into one clear framework.
🎥 Watch the full YouTube video here:👉https://www.youtube.com/watch?v=WQ_BdSXdRuc
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicinePatreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Disclaimer: This podcast is for educational purposes only and is not medical advice. Clinical decisions should always be made based on individual patient circumstances, institutional protocols, and consultation with appropriate specialists.

#238 Continuous Venovenous Hemofiltration CVVH Explained | ICU CRRT Deep Dive

Continuous Venovenous Hemofiltration (CVVH) Explained | ICU CRRT Deep Dive
Continuous venovenous hemofiltration (CVVH) is a core modality of continuous renal replacement therapy (CRRT) used in critically ill ICU patients, particularly those with hemodynamic instability who cannot tolerate intermittent dialysis. In this episode, we take a deep dive into the physiology, mechanisms, and clinical applications of CVVH to help you build a clear, bedside understanding of how this therapy works.
We break down the foundational principles behind CVVH, including convection and solvent drag, ultrafiltration, transmembrane pressure, and solute clearance. We also review key CRRT terminology, replacement fluid strategies, and high-yield clinical concepts that explain why CVVH is commonly used in septic shock, cardiogenic shock, severe fluid overload, and life-threatening electrolyte abnormalities.
This episode is designed for medical students, residents, fellows, ICU nurses, respiratory therapists, emergency physicians, and critical care clinicians who want a strong physiology-based understanding of renal replacement therapy in the ICU.
Topics covered include:• What CVVH is and how it works• Convection vs diffusion in CRRT• Ultrafiltration and net fluid removal• Transmembrane pressure and sieving coefficient• Replacement fluid strategies• Basic CVVH prescription principles• Clinical indications and complications• High-yield ICU and bedside pearls
If you want to strengthen your understanding of emergency critical care physiology and ICU management, this episode provides a structured and practical approach to one of the most important therapies in modern critical care.
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicine
Patreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
▶️ Watch the full video version here:https://www.youtube.com/watch?v=dKryfOQsf6U
⚠️ Podcast Disclaimer:This podcast is for educational purposes only and is intended for healthcare professionals and trainees. The content does not constitute medical advice, diagnosis, or treatment recommendations and should not replace clinical judgment, institutional protocols, or professional consultation. The views expressed are those of the presenters and do not represent any affiliated institutions or employers.

#237 Waveform Interpretation Explained: Arterial Line, Capnography ETCO₂ & CVP Waveforms

In this episode, we break down waveform interpretation in critical care, focusing on arterial line waveforms, end tidal capnography (ETCO₂) waveforms, and central venous pressure (CVP) waveforms used in ICU patient monitoring.
Learn how to interpret hemodynamic and respiratory monitoring waveforms, understand the physiology behind waveform components, and apply waveform analysis to mechanical ventilation and critical care management. This episode provides a practical guide to arterial line monitoring, capnography waveform phases, and central venous pressure waveform interpretation for respiratory therapists, ICU clinicians, nurses, and medical learners.
This episode is ideal for healthcare professionals learning hemodynamic monitoring, mechanical ventilation monitoring, respiratory therapy, and ICU patient monitoring.
🎥 Watch the full video here:👉 https://www.youtube.com/watch?v=buysdcesBgA
📚 Download the PDF study guide for this video:👉 https://www.patreon.com/c/WhiteBoardMedicine
Patreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Episode Timestamps
00:00 – 14:45 Arterial Line Waveform Interpretation14:46 – 24:42 End Tidal Capnography (ETCO₂) Waveform24:43 – 32:47 Central Venous Pressure (CVP) Waveform
Disclaimer
This content is provided for educational purposes only and is intended for healthcare professionals. It is not medical advice and should not be used as a substitute for clinical judgment, professional training, or institutional protocols. The information presented reflects general educational discussion and does not represent the official views, policies, or positions of any hospitals, healthcare organizations, or affiliated institutions. Clinical decisions should always be made in accordance with local guidelines, institutional policies, and appropriate supervision by qualified medical professionals.

#236 Spontaneous Breathing Trials & Extubation Criteria Explained | RSBI, Pressure Support, CPAP, T Piece

In this episode, we break down spontaneous breathing trials (SBT) and extubation criteria used in the ICU to evaluate ventilator weaning and readiness for extubation. Learn how spontaneous breathing trials are performed, how to calculate and interpret the rapid shallow breathing index (RSBI), and how pressure support, CPAP, and T-piece trials compare in assessing patient breathing during mechanical ventilation.
We review clinical evidence, ventilator management strategies, and the physiologic principles behind each spontaneous breathing trial method. This episode also includes practice questions to reinforce key mechanical ventilation concepts for respiratory therapists, ICU clinicians, nurses, and medical learners.
This episode is ideal for healthcare professionals learning mechanical ventilation, respiratory therapy, ventilator weaning, and critical care medicine.
📚 Download the PDF study guide for this video: 👉 https://www.patreon.com/c/WhiteBoardMedicine Patreon members get access to mini-courses, study guides, practice questions, ad-free videos, and in-depth educational discussions designed for emergency and critical care clinicians.
Episode Timestamps
00:00 – 04:39 Introduction and what is a spontaneous breathing trial (SBT)04:40 – 12:24 When and how to perform a spontaneous breathing trial12:25 – 20:22 RSBI, passing SBT, evidence and guidelines20:23 – 22:57 Comparing pressure support, CPAP, and T-piece trials22:58 – 25:49 Practice questions (Part 1)25:50 – 36:35 Deep dive: Pressure support trial36:36 – 40:42 Deep dive: CPAP trial40:43 – 46:54 Deep dive: T-piece trial46:55 – 50:25 Practice questions (Part 2)
Link to YouTube video:https://www.youtube.com/watch?v=Fldrxt05Ks4 
Disclaimer
This content is provided for educational purposes only and is intended for healthcare professionals. It is not medical advice and should not be used as a substitute for clinical judgment, professional training, or institutional protocols. The information presented reflects general educational discussion and does not represent the official views, policies, or positions of any hospitals, healthcare organizations, or affiliated institutions. Clinical decisions should always be made in accordance with local guidelines, institutional policies, and appropriate supervision by qualified medical professionals.