SHOCK Flashcards
HEMODYNAMIC SHOCK-
causes
- hemorrhage
- dehydration
- burns
HEMODYNAMIC SHOCK-
hemodynamic changes
decreased CO/CI
decreased CVP
decreased PCWP
increased SVR
HEMODYNAMIC SHOCK-
Pt presentation
decreased BP increased HR increased RR decreased urine output cool, pale, moist skin weak, thready pulse
HYPOVOLEMIC SHOCK
loss of intravascular fluid volume –> decreased MAP due to volume loss
CARDIOGENIC SHOCK
cardiac pump failure –> reduced contractility of heart
CARDIOGENIC SHOCK-
causes
MI blunt chest trauma dysrhythmias structural defect endocarditis myocarditis cardiomyopathy
CARDIOGENIC SHOCK-
hemodynamic changes
decreased CO/CI
increased CVP
increased PCWP
increased SVR
CARDIOGENIC SHOCK-
Pt presentation
decreased BP increased HR increased RR (+) JVD decreased urine output decreased LOC cool, pale, moist skin
OBSTRUCTIVE SHOCK
circulatory collapse –> physical obstruction of circulatory intravascular blood volume –> poor tissue perfusion
OBSTRUCTIVE SHOCK-
causes
massive PE
tension pneumothorax
cardiac tamponade
OBSTRUCTIVE SHOCK-
hemodynamic changes
depends on etiology
OBSTRUCTIVE SHOCK-
Pt presentation
decreased BP
increased RR
chest pain/pressure
other symptoms depending on etiology
NEUROGENIC SHOCK
loss of sympathetic nervous system tone –> loss of spinal cord transmission –> loss of vascular tone
NEUROGENIC SHOCK-
causes
injury to spinal cord (common at C6 & above)
NEUROGENIC SHOCK-
hemodynamic changes
decreased/normal CO/CI decreased/normal CVP decreased/normal PCWP decreased SVR decreased HR
NEUROGENIC SHOCK-
Pt presentation
decreased BP decreased HR cool, moist above warm, dry above diminished/absent motor/sensory function below injury
SEPTIC SHOCK
decreased vascular tone –> toxins & endotoxins enter system activating SIRS response
SEPTIC SHOCK-
causes
infection
SEPTIC SHOCK-
hemodynamic changes
early: increased CO/CI decreased/normal CVP decreased/normal PCWP decreased SVR
Late: decreased CO/CI decreased CVP decreased PCWP increased SVR
SEPTIC SHOCK-
Pt presentation
decreased BP increased HR increased RR increased temperature decreased urine output decreased LOC bounding pulses warm, flushed skin petechiae purpura
ANAPHYLACTIC SHOCK
IgE mediated decrease in vascular tone &/or volume –> chemical mediators released in response to allergy –> systemic vasodilation & capillary leaking
ANAPHYLACTIC SHOCK-
causes
medications insect bites/stings envenomation blood transfusion imaging contrast food
ANAPHYLACTIC SHOCK-
hemodynamic changes
increased CO/CI
decreased CVP
decreased PCWP
decreased SVR
ANAPHYLACTIC SHOCK-
Pt presentation
decreased BP increased HR shortness of breath wheezing/stridor pruritis/urticaria anxiety flushed, red skin
