61 results
Shock Classification Types - Pathophysiology Comparison

Obstructive Shock:
 • Obstructive shock is characterized by a blockage in
massive pericardial effusion ... , cardiac tamponade ... Tamponade: pericardial effusion ... Signs: Normal cardiac ... #criticalcare #diagnosis
Shock - Pathophysiology 
Inadequate tissue perfusion to meet O2, nutrient requirements
1. Distributive Shock
2. Hypovolemic Shock
3. Cardiogenic
Shock - Pathophysiology ... Inadequate tissue perfusion ... Hypovolemic Shock ... #differential # ... diagnosis #algorithm
Shock - Differential Diagnosis Algorithm
Warm Extremities
 - Distributive Shock - Low JVP
Shock - Differential ... Diagnosis Algorithm ... Pneumothorax • Cardiac ... #Hypotension #Differential ... #Diagnosis #Algorithm
POCUS Pearls for Tamponade
- Pericardial Effusion
- Diastolic Right Ventricular Collapse
- Systolic Right Atrial Collapse
- Plethoric Inferior
- Pericardial Effusion ... @SAlerhand #Cardiac ... Tamponade #POCUS #Diagnosis ... Evaluation #Cardiology #Effusion ... Echocardiogram #Ultrasound
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
Shock - Differential ... Diagnosis Framework ... release syndrome, infusion ... #Differential # ... Diagnosis #table
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Diagnosis Algorithm ... Right-to-Left Shunt: Cardiac ... Hypoxemia #Hypoxia #Differential ... #Diagnosis #Algorithm
Shock - Diagnosis and Management Summary
 • Hypotension: SBP<90, SBP drop >40, MAP<65 (Normotension, HTN possible
Shock - Diagnosis ... Consider IL NS/LR infusion ... Setup - Ultrasound ... Cardiac surgery? ... #Diagnosis #Management
Differential Diagnosis: Cyanosis - Mnemonic "COLD PALMS"
Peripheral cyanosis 
• Cold 
• Obstruction 
• LVF and shock
Differential Diagnosis ... Obstruction • LVF and shock ... • Decreased cardiac ... Cyanosis #COLDPALMS #Diagnosis
Hemorrhagic Pericardial Effusions (Hemopericardium)- Differential Diagnosis Framework

IATROGENIC DISEASE
Secondary to invasive cardiac procedures

NONIATROGENIC
• Malignancy (e.g., metastatic spread:
Hemopericardium)- Differential ... Diagnosis Framework ... Secondary to invasive cardiac ... CAUSES • PRIMARY Cardiac ... #Diagnosis #cardiology
Hypotension / Shock Differential Diagnosis Algorithm
Hypovolemic:
 • Poor oral intake
 • Hemorrhage
 • Renal loss
 •
Hypotension / Shock ... Differential Diagnosis ... Obstructive: • Cardiac ... #Hypotension #Differential ... #Diagnosis #Algorithm