Shock Differential Flashcards
1
Q
Define pulse pressure:
A
PP = SBP - DBP
A PP less than half of the DBP is defined as “narrow.” A narrow PP is related to low stroke volume.
Another way of looking at it is:
PP = SV divided by Compliance
2
Q
Approximate percentages of types of shock presenting to ED
A
Distributive: 52%
Hypovolemic: 32%
Cardiogenic: 15%
Obstructive: 1%
3
Q
Examples of high stroke volume shock:
A
Sepsis Anaphylaxis Burns Endocrine Metabolic
4
Q
Examples of low stroke volume shock (low preload):
A
Hypovolemia Hemorrhage Ruptured AAA Tension PTX Tamponade
5
Q
Examples of low stroke volume shock (poor contractility):
A
LV dysfunction
RV dysfunction
BiV dysfunction
6
Q
Examples of low stroke volume shock (high afterload):
A
AS
Dissection
HTN
