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clinical radiology diagnosis pocus echocardiogram ekg radiologyassistant cxr ecg differential management electrocardiogram a4c ctchest pulmonary physicalexam sign xray algorithm video
POCUS - Measuring Cardiac Output 1) Calculate LVOT Area 2) Calculate LVOT VTI 3) Calculate Cardiac Output SV = (LVOT
) x (LVOT VTI) CO ... LVOT VTI) X HR CO ... Cardiac #Output #CO ... #Measurement #cardiology
Mean Arterial Pressure (MAP) Average arterial pressure throughout one cardiac cycle, systole, and diastole. Surrogate indicator of
Cardiac Output (CO ... (CVP) MAP = (CO ... Cardiac output (CO ... Pulsepressure #strokevolume ... cardiacoutput #Co
Shock Classification and Differential Diagnosis SHOCK • MAP <65, SBP <90, drop in SBP > 40 •
Distributive: • High CO ... Cardiogenic: • Low CO ... Obstructive: • Low CO ... Hypovolemic: • Low CO
Shock - Differential Diagnosis Framework MAP = CO x SVR Hypovolemic (↓ Intravascular volume): • Hemorrhage, dehydration due
Framework MAP = CO ... third-spacing • ↓ CO ... arrhythmia • ↓ CO ... PE, PAH • ↓ CO ... drugs/toxins • ↑ CO
Sinus Tachycardia - Differential Diagnosis Framework Autonomic System: • Excess Stimulation: Nicotine, Caffeine, Sympathomimetics, Anticholinergics • Withdrawal:
Pheochromocytoma Inadequate CO ... Differential #Diagnosis #cardiology
Right Heart Catheterization Cheat Sheet: Interpretation of Pressures and Waveforms Direct measurements ● Central venous pressure
Cardiac output (CO ... pressure – CVP]/CO ... mean PAp – PCWP]/CO ... /min/m2) (CI = CO ... CheatSheet #Waveforms #Cardiology
Vasopressors and Inotropes - Pharmacology Summary Vasopressors Phenylephrine (alpha-1) • Increases BP, SVR • Risk of reflex bradycardia
Increases BP, SVR, CO ... Increases HR, SVR, CO ... contractility, CO ... • Increases CO
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO •
meanPAP-PCWP) / CO ... [(MAP - RAP) / CO ... (CPO) = (MAP x CO ... for measuring CO ... catheter #diagnosis #cardiology
Carbon Monoxide Poisoning Symptoms are non-specific: - Headache 90% - Nausea/vomiting 50% - Vertigo 50% - Altered
questions: - Co-ocupants ... - Alarm (for CO
Stroke Volume & Cardiac Output Measurement on POCUS Accurately measure LVOT diameter: 1. Obtain PLAX 2. Zoom to
around PWD trace CO ... Measurement #POCUS #cardiology
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