Emergency Medicine Masterclass || UPDATED ||

Explore how circulatory shock causes cellular hypoxia, lactic acidosis, and organ failure from impaired oxygen delivery. Identify hypovolemic, cardiogenic, distributive, and obstructive shock, with dehydration, pump failure, and vasodilation.

Learn protocol-based management of hypovolemic and cardiogenic shock, balancing fluids, blood products, and vasopressors to restore oxygen delivery while preventing organ damage.

Treat septic and anaphylactic shock as distributive shock with rapid fluids and vasopressors; follow the one-hour bundle for sepsis and use intramuscular epinephrine for anaphylaxis.

Identify ventricular fibrillation or pulseless ventricular tachycardia and perform rapid defibrillation. Deliver high-quality CPR and administer anephrine every 3–5 minutes.

Explore acute coronary syndromes from unstable angina to STEMI, using ECG and troponin to guide rapid cath lab or fibrinolytics, risk scoring, and lifelong prevention strategies.

Stabilize acute decompensated heart failure with immediate respiratory support using CPAP or BIPAP, then administer diuretics and vasodilators to offload fluid. Monitor perfusion status and oxygenation to guide treatment.

Explore asthma and COPD exacerbations as obstructive diseases with airway constriction and air trapping. Learn rapid airway opening, signs of respiratory failure, and treatments including bronchodilators, steroids, and noninvasive ventilation.

Explore diagnostic pathways for acute pulmonary embolism, applying Wells criteria and PERC rules, D-dimer testing, and imaging like CTPA or VEQ to stratify risk and guide blood thinner therapy.

Identify acute stroke fast using BE FAST, determine ischemic vs hemorrhagic etiologies, and restore blood flow with thrombolysis or mechanical thrombectomy when indicated.

Assess status epilepticus, apply the 5-minute rule, secure airway, provide high-flow oxygen, check glucose, and administer rapid benzodiazepine therapy to stop the seizure quickly.

Clarifies how heat illness ranges from heat exhaustion to heat stroke, emphasizes distinguishing the two and aggressive evaporative cooling to lower core temperature, manage dehydration, and mitigate organ damage.

Manage accidental hypothermia and frostbite by understanding core temperature stages and rewarming methods from passive warming to ECMO, and by applying careful frostbite thawing and tissue-protection steps.

Explore biomechanics of energy transfer in trauma to predict hidden injuries from blunt and penetrating mechanisms. Prioritize the primary survey ABCDE and secure airway with spine precautions.

Recognize tension pneumothorax by distress, absent breath sounds, and hypotension; perform needle decompression with a chest tube, and manage hemothorax with a large chest tube, monitoring drainage for surgery.

Covers traumatic brain injury, including primary and secondary injury, uses the Glasgow Coma Scale to assess severity, and outlines management to prevent intracranial hypertension and preserve cerebral perfusion.

Use the fast exam as a rapid bedside ultrasound during the trauma primary survey to detect free fluid and guide urgent surgical decisions.

The lecture compares diabetic ketoacidosis and hyposmolar hyperglycemic state, outlining pathophysiology, diagnostic criteria, and critical management with aggressive IV fluids, careful insulin initiation after potassium optimization, and close electrolyte monitoring.

Identify and treat life-threatening electrolyte imbalances in the emergency department—potassium, sodium, calcium, and magnesium—using calcium stabilization and insulin with glucose to shift potassium.

Secure airway and breathing, provide rapid resuscitation, and use toxidromes to guide targeted care for overdoses, including naloxone, activated charcoal, and dialysis or antidotes.

Identify and manage pediatric emergencies by recognizing rapid decompensation and distinct airway and respiratory physiology in children. Use the pediatric assessment triangle to prioritize immediate interventions.