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diagnosis clinical differential lung pocus management radiology algorithm cardiology ultrasound causes video radiologyassistant cxr physicalexam respiratory echocardiogram criticalcare treatment sign
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 ... dromotropy, and lusitropy ... chronotropy #dromotropy #lusitropy
Shock Classification and Differential Diagnosis SHOCK • MAP <65, SBP <90, drop in SBP > 40 •
Distributive: • High CO ... Cardiogenic: • Low CO ... Obstructive: • Low CO ... , CVP > 12 • Pulmonary ... Hypovolemic: • Low CO
Right Heart Catheterization Cheat Sheet: Interpretation of Pressures and Waveforms Direct measurements ● Central venous pressure
pressures (RA, RV) ● Pulmonary ... pressure (PAp) ● Pulmonary ... Cardiac output (CO ... pressure – CVP]/CO ... ) ● Pulmonary
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO •
Catheterization - Pulmonary ... and Calculations PULMONARY ... meanPAP-PCWP) / CO ... [(MAP - RAP) / CO ... (CPO) = (MAP x CO
Shock - Differential Diagnosis Framework - MAP <65. SBP <90, drop in SBP > 40 -
Lactate > 1.5 High CO ... Cord Injury Low CO ... • Obstructive: Pulmonary
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
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
Chronic Obstructive Pulmonary Disease (COPD) • COPD Definition • Role of PFTs • COPD Classification and
Chronic Obstructive Pulmonary ... - Assess for co-morbidities ... #Obstructive #Pulmonary
Oxygen Delivery Equation DO2 = CO x {(1.39 x Hb x sO2) + (PaO2 x 0.03)} DO2 =
Equation DO2 = CO ... delivery in mL/min CO ... Cardiac output (CO ... pathophysiology #pulmonary
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
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