Section I: Basics Principles- Basic Principles of POCUS -- Point of Care Echocardiography -- Point of Care Lung and Diaphragmatic Ultrasound -- Section II: POCUS in Diagnosis -- Acute heart failure -- Acute myocardial ischemia -- Acute pericarditis -- Acute pulmonary embolism -- Lobar pneumonia -- Interstitial pneumonia -- Pneumothorax -- Section III: POCUS in Monitoring -- How to monitor pulmonary edema -- How to monitor volume responsiveness -- How to assess for systemic venous excess (VeXUS protocol) -- How to monitor left ventricular filling pressures -- How to monitor systolic cardiac function and shock states -- How to monitor valvular function -- How to monitor pericardial effusion -- How to monitor pleural effusion -- How to monitor lung aeration/de-areation -- How to monitor pneumothorax -- Section IV: POCUS in guiding interventions -- Drainage of pericardial effusion -- Drainage of pleural effusion.