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Shock Classification and Differential Diagnosis
SHOCK
 • MAP <65, SBP <90, drop in SBP > 40
 •
Shock Classification ... Differential Diagnosis SHOCK ... Pneumothorax, Cardiac ... Sophia_Hayes_MD #Shock ... #Classification
Decision tree of FALLS-protocol (Fluid Administration Limited by Lung Sonography). Lung Ultrasound in the hemodynamic assessment
assessment of Shock ... According to Weil classification ... , cardiac and lung ... FALLS #protocol #algorithm ... #Fluids #POCUS
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
Shock - Differential ... Cardiogenic (Intra-cardiac ... Obstructive (Extra-cardiac ... → tension PTX, cardiac ... uw_IMresidency #Shock
POCUS - Measuring Cardiac Output
1) Calculate LVOT Area
2) Calculate LVOT VTI
3) Calculate Cardiac Output

SV = (LVOT
POCUS - Measuring ... Cardiac Output ... ) x (LVOT VTI) CO ... LVOT VTI) X HR CO ... #Output #CO #POCUS
Shock - Differential Diagnosis Framework
 - MAP <65. SBP <90, drop in SBP > 40
 -
Shock - Differential ... Lactate > 1.5 High CO ... Cord Injury Low CO ... Pneumothorax, Cardiac ... #criticalcare #algorithm
Common Vasopressors and Inotropes
Norepinephrine (NE)
 - Indication: Distributive shock (1st line for septic shock), Cardiogenic shock
: Distributive shock ... (mild ↑CO) - Side ... Tachyarrhythmias, Cardiac ... Tachyarrhythmias, Cardiac ... Tachyarrhythmias, Cardiac
Shock Classification Types - Pathophysiology Comparison

Obstructive Shock:
 • Obstructive shock is characterized by a blockage in
Shock Classification ... pericardial effusion, cardiac ... Signs: Normal cardiac ... characterized by low cardiac ... criticalcare #diagnosis #classification
FALLS protocol - POCUS evaluation in shock

The FALLS-protocol is an ultrasound evaluation of patients with acute
FALLS protocol - POCUS ... evaluation in shock ... classification ... FALLS #Protocol #Shock ... #Algorithm
Approach to Undifferentiated Shock - OnePager Summary
Shock occurs when there is inadequate blood flow (CO) &
inadequate blood flow (CO ... Pump Problem (↓ CO ... Pneumothorax, Cardiac ... may develop low CO ... pancreatitis, post-cardiac
Shock Overview
A state of tissue hypoxia due to decreased or dysregulated oxygen delivery or extraction, resulting
- Low CO and therefore ... - Low CO and therefore ... - Low CO and therefore ... #Classification ... differential #causes #classification