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Shock
From slides
18
Nursing
Undergraduate 1
03/12/2012

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Cards

Term
What are the three characteristics of shock?
Definition
1. Hypoperfusion
2. Inability to provide adequate blood flow for organs to fxn
3. O2 Demand > Supply
Term
Perfusion of organs depends on ______ output and ________ vascular resistance.
Definition
Cardiac
Systemic
Term
What are the five types of shock?
Definition
LOW BLOOD FLOW (Cardiogenic, Hypovolemic)
Maldistribution (Sepsis, Neurogenic, Anaphylactic)
Term
Characterize Neurogenic shock (Maldistribution)
Definition
Loss of neural control over vaso constriction
Term
Characterize Septic Shock (maldistribution)
Definition
infection causes vascular permeability problems.
Term
Characterize Anaphylactic Shock:
Definition
Increase permeability from histamines, volume escapes vasculature and hypoperfusion ensues
Term
Characterize Cardiogenic shock
Definition
Pump failure.
Term
What are the two main hemodynamic effects of ALL types of shock?
Definition
Decreased Pulse Pressure nad Decreased Blood Pressure
Term
Vaso_______ and increased vascular permeability are the main problems in maldistribution types of shock.
Definition
vasodilation
Term
Which is the only type of shock where HR decreases?
Definition
Neurogenic (think drug induced)
Term
Which types of shock have INCREASED systemic vascular resistance?
Definition
Cardiogenic and Hypovolemic
Term
Which type of shock has increased Central Venous Pressure?
Definition
Cardiogenic
Term
Which type of shock has increased cardiac output?
Definition
Septic shock
Term
What are the three stages of shock?
Definition
Compensatory (compensating)
Progressive (declining)
Refractory (irreversible damage)
Term
What are the signs in Compensatory Preshock?
Definition
Increases in HR, RR, Blood Glu
Decrases in PaO2 and PaCO2
Term
What are the signs of going into Progressive Shock?
Definition
Decreases in CPP and BP
MAP <60
Pulmonary Edema
GI bleeding/ischemia
Liver Impaired
Term
What are the signs of refractory shock?
Definition
Decreased urine output
Increased BUN/Cr
Hypothermic
Cold/Clammy
Lactate, bleed time, liver nz's
Term
What are some Ns interventions for shock?
Definition
ABC
IV access
Indwelling catheter
NG tube to continually remove stomach contents
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