Week 4/5: Shock Flashcards
Shock
a syndrome characterized by decreases tide perfusion and impaired cellular metabolism
Cardiogenic shock
occurs when either systolic or diastolic dysfunction of the heart pumping occurs resulting in reduced SV, CO and BP
S&S of cardiogenic shock
tachypenic
tachycardia
hypotension
diaphoresis
pallor/cyanosis
anxiety/agitation/confusion
delayed cap refill crackles
decreased urine output
Hypovolemic shock
occurs from inadequate volume to the intravascular space to support perfusion
Absolute hypovolemia
results from fluids loss through hemorrhage, GI loss, fistula drainage, diabetes or diuresis
relative hypovolemia
when fluid moves out of vascular space into extra vascular space (this is called third spacing)
What are the 4 main classifications of shock?
- Cardiogenic
- Hypovolemic
- Distributive
- Obstructive
What types of shock fall under distributive shock?
a. neurogenic
b. septic
c. anaphylactic
S&S of hypovolemic shock?
anxious
decreased urine output
hypotension
Neurogenic shock
a hemodynamic phenomenon that can occur within 30 minutes of spinal injury at T5 or higher
S&S of neurogenic shock
hypotension
bradycardia
hypothermia
Anaphylactic shock
a acute life threatening reaction to a substance (causes massive vasodilation)
S&S of anaphylactic shock
hypotension
shortness of breath
swelling/edema
Septic shock
syndrome that arises when the body response to infection injures its own tissues and organs
S&S of septic shock
hypoxia
hypotension
tachycardia
tachyponea
neurological alterations
decreased urine output
