11 results
Bedside Classification of Shock

Hypovolemic shock 

- Vomiting, diarrhea, overdiuresis 

- Hemorrhage (GI, peritoneal, RP) 

Distributive shock
Hypovolemic shock ... Anaphylaxis - Post-cardiac ... Endocarditis - Post-MI ... Cardiogenic #Comparison ... #Table #Diagnosis
Shock - Differential Diagnosis Framework
MAP = CO x SVR
Hypovolemic (↓ Intravascular volume):
 • Hemorrhage, dehydration due
MAP = CO x SVR Hypovolemic ... , pallor Cardiogenic ... failure, acute MI ... based on cause Distributive ... Differential #Diagnosis #table
Shock - Differential Diagnosis by Classification

Hypovolemic (Intravascular volume depletion)
 - Hemorrhagic 
   • Trauma
Classification Hypovolemic ... Intractable vomiting Distributive ... ) Cardiogenic ( ... contractility) - Acute MI ... Classification #Table
Approach to Undifferentiated Shock - OnePager Summary
Shock occurs when there is inadequate blood flow (CO) &
4 categories: cardiogenic ... , obstructive, distributive ... , hypovolemic Pump ... Pneumothorax, Cardiac ... pancreatitis, post-cardiac
Shock and Vasoactive Drugs 
1) Determine type and etiology of shock
 • Distributive: Sepsis, Anaphylaxis, Neurogenic
Distributive ... Neurogenic • Cardiogenic ... : Acute MI, Acute ... Arrhythmias / CHB • Hypovolemic ... management #comparison #table
Pulmonary Arterial Catheterization – Use and Interpretation:
-Pulmonary arterial catheterization (PAC) has never been shown to improve
or the type of shock ... those with severe cardiogenic ... shock (eg, acute ... #Diagnosis #PACatheter ... #Differential #Table
Right Heart Catheterization - Pulmonary Artery Pressures and Calculations
PULMONARY VASCULAR RESISTANCE = (meanPAP-PCWP) / CO
 •
mortality in inferior MI ... or hypovolemic ... CARDIAC POWER OUTPUT ... much as 40% in cardiac ... Catheterization #RHC #PACatheter
Shock - Diagnosis and Management Summary
 • Hypotension: SBP<90, SBP drop >40, MAP<65 (Normotension, HTN possible
Pneumothorax • Hypovolemic ... resuscitation • Cardiogenic ... Shock - MI ... Cardiac surgery? ... • Distributive Shock
Shock Classification
Shock Definition: State of cellular and tissue hypoxia due to: reduced oxygen delivery, increased oxygen
failure, and death DISTRIBUTIVE ... myxedema, beriberi CARDIOGENIC ... pneumothorax, cardiac ... cardiomyopathy HYPOVOLEMIC ... warm #wet #dry #table
Shock Overview
A state of tissue hypoxia due to decreased or dysregulated oxygen delivery or extraction, resulting
. narrow pulse pressure ... /flank edema) Distributive ... RP bleed) • Hypovolemic ... wound. drains) Cardiogenic ... O2 delivery • MI