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diagnosis criticalcare differential management cardiology classification cardiac causes comparison inotropes measurement output overview pharmacology pocus table vasopressors afterload algorithm artery
POCUS - Measuring Cardiac Output 1) Calculate LVOT Area 2) Calculate LVOT VTI 3) Calculate Cardiac Output SV = (LVOT
Cardiac Output SV ... ) x (LVOT VTI) CO ... LVOT VTI) X HR CO ... (mL/min) = SV ( ... Cardiac #Output #CO
Mean Arterial Pressure (MAP) Average arterial pressure throughout one cardiac cycle, systole, and diastole. Surrogate indicator of
Cardiac Output (CO ... Stroke Volume (SV ... dromotropy, and lusitropy ... chronotropy #dromotropy #lusitropy ... #SV #lvdv
Shock Classification and Differential Diagnosis SHOCK • MAP <65, SBP <90, drop in SBP > 40 •
Shock Classification ... Differential Diagnosis SHOCK ... Distributive: • High CO ... Cardiogenic: • Low CO ... Sophia_Hayes_MD #Shock
Shock - Differential Diagnosis Framework MAP = CO x SVR Hypovolemic (↓ Intravascular volume): • Hemorrhage, dehydration due
Shock - Differential ... Framework MAP = CO ... third-spacing • ↓ CO ... arrhythmia • ↓ CO ... uw_IMresidency #Shock
Approach to Undifferentiated Shock - OnePager Summary Shock occurs when there is inadequate blood flow (CO) &
Undifferentiated Shock ... OnePager Summary Shock ... inadequate blood flow (CO ... Pump Problem (↓ CO ... may develop low CO
Shock - Differential Diagnosis Framework - MAP <65. SBP <90, drop in SBP > 40 -
Shock - Differential ... Lactate > 1.5 High CO ... Cord Injury Low CO ... Dehydration Shock ... Sophia_Hayes_MD #Shock
Shock Overview A state of tissue hypoxia due to decreased or dysregulated oxygen delivery or extraction, resulting
Shock Overview ... of hypotension Shock ... - Low CO and therefore ... - Low CO and therefore ... - Low CO and therefore
Vasopressors and Inotropes - Pharmacology Summary Vasopressors Phenylephrine (alpha-1) • Increases BP, SVR • Risk of reflex bradycardia
Increases BP, SVR, CO ... first agent in shock ... Increases HR, SVR, CO ... line in septic shock ... contractility, CO
Stroke Volume & Cardiac Output Measurement on POCUS Accurately measure LVOT diameter: 1. Obtain PLAX 2. Zoom to
around PWD trace CO ... LVOT Diam/2) 2 SV
Shock Overview A state of tissue hypoxia due to decreased or dysregulated oxygen delivery or extraction, resulting
Shock Overview ... of hypotension Shock ... - Low CO and therefore ... - Low CO and therefore ... - Low CO and therefore
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