ch 43

Shock results from...

when the body loses its ability to circulate an adequate supply of oxygenated blood to all its components--esp. the brain.

survival mechanism, activated by the CNS, that ensures that the body's most vital organs are supplied with blood until the last possible moment.

Compensatory circulation

Shock may fall into three different categories

primary--body's immediate response, secondary (delayed or deffered)--one or more hrs after injury or perhaps up to 24hrs, or hemorrhagic--due to blood loss

Trauma that results in excessive blood loss and decrease in blood volume for the heart to pump is called...

hypovolemic shock (1/5 blood loss)

signs and symptoms of hypovolemic shock (9)

Hypotension, weak, thready pulse, cool, clammy skin, Tachycardia, tachyphnea, hyperpnea, restlessness and anxiety, weakness, decreased urinary output.

emergency assessment acryonym:

A=Airway and cervical spine
B=Breathing
C=Circulation and bleeding
D=Disability
E=Expose and examine

A V P U

A=alert
V=verbal stimuli only
P=Painful stimuli
U=unresponsive

occurs anytime breathing and heartbeat stop abruptly or unexpectedly

Sudden Death or cardiopulmonary arrest.

occurs when a persons breathing and heartbeat stop. It may be reversible

clinical death