Chapter 10 - Shock Flashcards
Circulation of blood within an organ
perfusioin
State of collapse and failure of cardiovascular system.
shock (hypoperfusioin)
A balance of all systems in the body.
homeostasis
Responsible for formation of blood clots.
platelets
Three basic causes of shock.
Pump failure (heart attack, trauma to heart, obstructive causes) Low fluid volume (trauma to vessels, fluid loss from GI tract) Poor vessel function (infection, drug overdose, spinal injury, anaphylaxis)
Cardiogenic shock.
Pump failure
inadequate circulation results in pulmonary edema which leads to impaired ventilation which leads to increased breathing rate and abnormal breath sounds
Widespread dilation of small arterioles, small venules, or both.
Distributive shock includes:
Septic shock (from toxins generated in severe infection)
Neurogenic shock (spinal injury, esp. upper cervical)
Anaphylactic shock
Psycogenic shock (usually temporary from syncope)
Hypovolemic shock (hemorrhagic or dehydration)
Presence of jugular vein distention, muffled heard sounds and systolic and diastolic blood pressure starting to merge.
Beck’s Triad
s/s obstructive shock
mechanical obstruction of heart muscle
Associated with acute cardiac tamponade