Delivery of O2 and removal of CO2
- Requires a pump (heart), fluid (blood), and vessels
Perfusion
inadequate flow of blood: i.e. SHOCK
Hypoperfusion
shock resulting from blood or fluid loss
- can be a result of bleeding, burns, or dehydration
Hypovolemic shock
,widespread vasodilation
- can be caused by SEPSIS
Distributive shock
- Severe infection that has an initial point then spreads throughout
bloodstream
- Toxins from infection destroy vessel walls, leading to capillary
permeability & reduced intravascular fluid
Sepsis
POWR: Position (supine), O2, Warmth, Rapid transport
How to treat septic shock?
,loss of control of muscular tone of blood vessels (due to a spinal cord injury
& damage to the nervous system)
Neurogenic shock
hypotension and bradycardia (only vagus signal bc of sympathetic damage)
- usually warm, dry skin below injury (unlike other types of shock)
Symptoms of neurogenic shock
Severe allergic reaction that leads to widespread vasodilation
Anaphylactic shock
- Increased vascular permeability
, - Bronchoconstriction
- Stridor
- Hives, edema, itching
Anaphylactic shock symptoms
- linear, depressed, open, basilar
4 types of skull fractures
A simple crack in the skull
- least deadly
- most common
- usually perpendicular to suture in skull
Linear skull fracture