WhiteBoard Medicine - Emergency And Critical Care

Hepatorenal syndrome is a serious kidney complication of advanced liver disease and portal hypertension. In this episode, we review the pathophysiology, diagnostic criteria, clinical evaluation, differential diagnosis, and treatment of hepatorenal syndrome.
Topics covered include:• What hepatorenal syndrome is• The relationship between cirrhosis, portal hypertension, and kidney dysfunction• Splanchnic vasodilation and reduced effective arterial blood volume• Renal vasoconstriction and decreased kidney perfusion• HRS-AKI and HRS-NAKI terminology• Diagnostic criteria for hepatorenal syndrome• Differentiating HRS from prerenal azotemia and acute tubular injury• Initial evaluation of AKI in cirrhosis• Albumin challenge and volume assessment• Holding diuretics and nephrotoxic medications• Terlipressin, norepinephrine, midodrine, and octreotide• Role of albumin therapy• Renal replacement therapy considerations• Liver transplantation as definitive therapy• Practical management considerations
Watch the full video on YouTube:https://www.youtube.com/watch?v=1x1nxyuwXVs
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Join a growing emergency medicine, critical care, and resuscitation education community built around high-yield clinical learning.
Patreon members get access to:• Comprehensive Study Guides• Bedside One-Pagers• Clinical Reviews• Mini-Courses• Practice Questions• Ad-Free Videos• Structured Topic Collections
🌐 WhiteBoard Medicine WebsiteExplore our growing library of critical care and emergency medicine content:https://www.whiteboardmedicine.com
⚠️ Educational Disclaimer:This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care.Full disclaimer: https://whiteboardmedicine.com/disclaimer

V/Q mismatch and pulmonary shunt are two major physiologic mechanisms of hypoxemia, but they affect oxygenation in different ways. In this episode, we compare ventilation-perfusion mismatch with pulmonary shunt physiology, focusing on how each develops, how they differ clinically, and why their response to supplemental oxygen is different.
Topics covered include:• What V/Q mismatch means• What pulmonary shunt means• Ventilation and perfusion basics• Low V/Q physiology• High V/Q physiology• True shunt physiology• How V/Q mismatch causes hypoxemia• How pulmonary shunt causes hypoxemia• Response to supplemental oxygen• A-a gradient and oxygenation assessment• Common causes of V/Q mismatch• Common causes of pulmonary shunt• Pneumonia, pulmonary edema, ARDS, atelectasis, COPD, asthma, and pulmonary embolism• Practical comparison for respiratory failure and critical care
Watch the full video on YouTube:https://www.youtube.com/watch?v=zfly57Y8COA
📚 Join the WhiteBoard Medicine Patreon Communityhttps://www.patreon.com/WhiteBoardMedicine
Join a growing emergency medicine, critical care, and resuscitation education community built around high-yield clinical learning.
Patreon members get access to:• Comprehensive Study Guides• Bedside One-Pagers• Clinical Reviews• Mini-Courses• Practice Questions• Ad-Free Videos• Structured Topic Collections
🌐 WhiteBoard Medicine WebsiteExplore our growing library of critical care and emergency medicine content:https://www.whiteboardmedicine.com
⚠️ Educational Disclaimer:This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care.Full disclaimer: https://whiteboardmedicine.com/disclaimer

Pulmonary shunt is an important physiologic mechanism of hypoxemia and respiratory failure. In this episode, we review what a pulmonary shunt is, how shunt physiology affects oxygenation, how it differs from V/Q mismatch and dead space ventilation, and why shunt physiology often responds poorly to supplemental oxygen.
Topics covered include:• What pulmonary shunt means• Normal ventilation and perfusion relationships• Right-to-left shunt physiology• Intrapulmonary versus intracardiac shunt• How pulmonary shunt causes hypoxemia• Why shunt responds poorly to supplemental oxygen• Difference between shunt, V/Q mismatch, and dead space• Low V/Q physiology versus true shunt• Alveolar collapse and atelectasis• Pneumonia, pulmonary edema, ARDS, and consolidation• A-a gradient and oxygenation assessment• Clinical examples of shunt physiology• Practical relevance in respiratory failure and critical care
Watch the full video on YouTube:https://www.youtube.com/watch?v=dQGNjMO8JpQ
📚 Join the WhiteBoard Medicine Patreon Communityhttps://www.patreon.com/WhiteBoardMedicine
Join a growing emergency medicine, critical care, and resuscitation education community built around high-yield clinical learning.
Patreon members get access to:• Comprehensive Study Guides• Bedside One-Pagers• Clinical Reviews• Mini-Courses• Practice Questions• Ad-Free Videos• Structured Topic Collections
🌐 WhiteBoard Medicine WebsiteExplore our growing library of critical care and emergency medicine content:https://www.whiteboardmedicine.com
⚠️ Educational Disclaimer:This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care.Full disclaimer: https://whiteboardmedicine.com/disclaimer

Portopulmonary hypertension is an important pulmonary vascular complication of portal hypertension and advanced liver disease. In this episode, we review the pathophysiology, clinical presentation, diagnostic evaluation, hemodynamic criteria, and treatment of portopulmonary hypertension.
Topics covered include:• What portopulmonary hypertension is• The relationship between portal hypertension and pulmonary arterial hypertension• Pathophysiology of pulmonary vascular remodeling• Clinical presentation and symptoms• Screening with transthoracic echocardiography• Right heart catheterization and diagnostic confirmation• Hemodynamic criteria for diagnosis• Differentiating portopulmonary hypertension from hepatopulmonary syndrome• Severity assessment and risk stratification• Pulmonary vasodilator therapy• Oxygen, diuretics, and supportive care• Liver transplantation considerations• Practical clinical considerations in advanced liver disease
Watch the full video on YouTube:https://www.youtube.com/watch?v=e02CbywSFQM
📚 Join the WhiteBoard Medicine Patreon Communityhttps://www.patreon.com/WhiteBoardMedicine
Join a growing emergency medicine, critical care, and resuscitation education community built around high-yield clinical learning.
Patreon members get access to:• Comprehensive Study Guides• Bedside One-Pagers• Clinical Reviews• Mini-Courses• Practice Questions• Ad-Free Videos• Structured Topic Collections
🌐 WhiteBoard Medicine WebsiteExplore our growing library of critical care and emergency medicine content:https://www.whiteboardmedicine.com
⚠️ Educational Disclaimer:This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care.Full disclaimer: https://whiteboardmedicine.com/disclaimer

Hemoptysis is an important clinical presentation that can range from minor blood-streaked sputum to life-threatening airway and respiratory failure. In this episode, we review the causes, initial evaluation, severity assessment, diagnostic approach, and management of hemoptysis.
Topics covered include:• What hemoptysis is• Differentiating hemoptysis from hematemesis and upper airway bleeding• Common causes of hemoptysis• Bronchitis, pneumonia, bronchiectasis, malignancy, pulmonary embolism, tuberculosis, and diffuse alveolar hemorrhage• Massive versus non-massive hemoptysis• Airway assessment and stabilization• Oxygenation and ventilation considerations• Initial laboratory and imaging evaluation• Chest X-ray and CT angiography• Role of bronchoscopy• Reversal of anticoagulation and coagulopathy• Bronchial artery embolization• Surgical consultation and definitive management• Practical emergency and critical care considerations
Watch the full video on YouTube:https://www.youtube.com/watch?v=aju1pgnTIXE
📚 Join the WhiteBoard Medicine Patreon Communityhttps://www.patreon.com/WhiteBoardMedicine
Join a growing emergency medicine, critical care, and resuscitation education community built around high-yield clinical learning.
Patreon members get access to:• Comprehensive Study Guides• Bedside One-Pagers• Clinical Reviews• Mini-Courses• Practice Questions• Ad-Free Videos• Structured Topic Collections
🌐 WhiteBoard Medicine WebsiteExplore our growing library of critical care and emergency medicine content:https://www.whiteboardmedicine.com
⚠️ Educational Disclaimer:This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care.Full disclaimer: https://whiteboardmedicine.com/disclaimer

V/Q mismatch is one of the most important physiologic mechanisms of hypoxemia and respiratory failure. In this episode, we review the physiology of ventilation-perfusion matching, high V/Q states, low V/Q states, shunt physiology, dead space ventilation, oxygen response, and the clinical relevance of V/Q mismatch.
Topics covered include:• What V/Q mismatch means• Ventilation and perfusion basics• Normal V/Q relationships in the lung• Low V/Q physiology• High V/Q physiology• Shunt physiology• Dead space ventilation• How V/Q mismatch causes hypoxemia• Response to supplemental oxygen• Common clinical causes of V/Q mismatch• Pneumonia, pulmonary edema, COPD, asthma, and pulmonary embolism• Practical interpretation of oxygenation problems• Clinical relevance in respiratory failure and critical care
Watch the full video on YouTube: https://www.youtube.com/watch?v=lHEzgqx33HI
📚 Join the WhiteBoard Medicine Patreon Communityhttps://www.patreon.com/WhiteBoardMedicine
Join a growing emergency medicine, critical care, and resuscitation education community built around high-yield clinical learning.
Patreon members get access to:• Comprehensive Study Guides• Bedside One-Pagers• Clinical Reviews• Mini-Courses• Practice Questions• Ad-Free Videos• Structured Topic Collections
🌐 WhiteBoard Medicine WebsiteExplore our growing library of critical care and emergency medicine content:https://www.whiteboardmedicine.com
⚠️ Educational Disclaimer:This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care.Full disclaimer: https://whiteboardmedicine.com/disclaimer

Acid-base interpretation and blood gas analysis are core skills for evaluating metabolic acidosis, metabolic alkalosis, respiratory acidosis, respiratory alkalosis, anion gap disorders, mixed acid-base disorders, ABGs, and VBGs. In this episode, we review a structured approach to acid-base physiology, anion gap interpretation, delta gap analysis, and blood gas interpretation.
Topics covered include:• Acid-base physiology and core definitions• Metabolic acidosis• Metabolic alkalosis• Respiratory acidosis• Respiratory alkalosis• Arterial blood gas interpretation• Venous blood gas interpretation• ABG versus VBG interpretation• Anion gap calculation and interpretation• Albumin correction for the anion gap• High anion gap metabolic acidosis• Normal anion gap metabolic acidosis• Delta gap and delta ratio analysis• Mixed acid-base disorders• Compensation and expected respiratory response• Practical acid-base problem solving
Watch the full video on YouTube:
https://www.youtube.com/watch?v=bC90uByQpcc
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Take your learning beyond the podcast with access to:• Comprehensive Study Guides• Bedside One-Pagers• Clinical Reviews• Mini-Courses• Practice Questions• Ad-Free Videos• Structured Topic Collections
Your support helps us continue creating high-yield WhiteBoard Medicine content for YouTube, podcasts, and beyond.
⚠️ Educational Disclaimer:This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care.Full disclaimer: https://whiteboardmedicine.com/disclaimer

ICU rounds require a structured approach to respiratory failure, ventilator management, arterial blood gases, nutrition, prophylaxis, sedation, and extubation readiness. In this episode, we review a practical ICU rounds framework for evaluating critically ill patients and organizing daily decision-making at the bedside.
Topics covered include:• How to present mechanical ventilation on ICU rounds• Ventilator settings and daily ventilator assessment• Arterial blood gas interpretation during ICU rounds• Oxygenation and ventilation goals• Spontaneous awakening trials and spontaneous breathing trials• Extubation readiness and liberation from mechanical ventilation• Enteral feeding and nutrition in the ICU• Stress ulcer prophylaxis
Watch the full video on YouTube:https://www.youtube.com/watch?v=WJcSNm97O4E
📚 Support WhiteBoard Medicine on Patreonhttps://www.patreon.com/WhiteBoardMedicine
Take your learning beyond the podcast with access to:• Comprehensive Study Guides• Bedside One-Pagers• Clinical Reviews• Mini-Courses• Practice Questions• Ad-Free Videos• Structured Topic Collections
Your support helps us continue creating high-yield WhiteBoard Medicine content for YouTube, podcasts, and beyond.
⚠️ Educational Disclaimer:This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care.Full disclaimer: https://whiteboardmedicine.com/disclaimer

Hepatopulmonary syndrome is an important pulmonary vascular complication of liver disease and portal hypertension. In this episode, we review the pathophysiology, clinical presentation, diagnostic evaluation, and treatment of hepatopulmonary syndrome.
Topics covered include:• What hepatopulmonary syndrome is• The relationship between liver disease, portal hypertension, and hypoxemia• Intrapulmonary vascular dilatations• Ventilation-perfusion mismatch and impaired oxygenation• Clinical presentation and symptoms• Platypnea and orthodeoxia• Diagnostic evaluation• Pulse oximetry and arterial blood gas testing• Contrast-enhanced echocardiography• Differentiating hepatopulmonary syndrome from portopulmonary hypertension• Treatment options and supportive care• Role of liver transplantation
Watch the full video on YouTube:https://www.youtube.com/watch?v=rUEJSEDFbrY
📚 Support WhiteBoard Medicine on Patreonhttps://www.patreon.com/WhiteBoardMedicine
Take your learning beyond the podcast with access to:• Comprehensive Study Guides• Bedside One-Pagers• Clinical Reviews• Mini-Courses• Practice Questions• Ad-Free Videos• Structured Topic Collections
Your support helps us continue creating high-yield WhiteBoard Medicine content for YouTube, podcasts, and beyond.
⚠️ Educational Disclaimer:This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care.Full disclaimer: https://whiteboardmedicine.com/disclaimer

TIPS, or transjugular intrahepatic portosystemic shunt, is an important procedure used in the management of complications related to portal hypertension. In this episode, we review what TIPS is, how it works, why it is performed, and the major clinical considerations surrounding TIPS placement.
Topics covered include:• What TIPS is and what the procedure creates• Portal hypertension and why reducing portal pressure matters• The anatomy of the portal venous and hepatic venous systems• How a portosystemic shunt changes blood flow• Common indications for TIPS• Refractory ascites• Variceal bleeding• Hepatic hydrothorax• TIPS contraindications and patient selection• Hepatic encephalopathy after TIPS• Liver failure and cardiac complications• Practical clinical considerations before and after TIPS
Watch the full video on YouTube:https://www.youtube.com/watch?v=7wZPfIofnwo
📚 Support WhiteBoard Medicine on Patreonhttps://www.patreon.com/WhiteBoardMedicine
Take your learning beyond the podcast with access to:• Comprehensive Study Guides• Bedside One-Pagers• Clinical Reviews• Mini-Courses• Practice Questions• Ad-Free Videos• Structured Topic Collections
Your support helps us continue creating high-yield WhiteBoard Medicine content for YouTube, podcasts, and beyond.
⚠️ Educational Disclaimer:This content is intended for educational purposes only and should not be used as a substitute for clinical judgment, institutional protocols, specialist consultation, or individualized patient care.Full disclaimer: https://whiteboardmedicine.com/disclaimer