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23 terms

EMTB Chapter 10 shock

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hypotension in a child is with blunt or penetrating trauma is particularly concerning because
it often indicates the loss of half of their blood volume
patients develop septic shock secondary to:
poor vessel function and sever volume loss
shock is the result of:
hypoperfusion to to body's cells
anaphylactic shock is
an exaggerated allergic reaction
The three basic causes for shock
1)poor pump function
2)dilating blood vessels
3)blood or fluid loss
Damage to the spinal cord that produces neurogenic shock will cause the blood vessels to
dialate
Signs and symptoms of anaphylactic shock seen in the skin are
1)urticaria and flushing.
2)edema of the face, tongue, and lips.
3)itching and burning.
During decompensated shock, the blood pressures will
fall
At what systolic blood pressure should you recognize that an adult patient is in decompensated shock
90 mmHg
Anxiety, bad news, or sight of blood can cause ________ shock.
psychogenic
When treating a patient in cardiogenic shock, your first step should be to
ensure that the patient has an open airway.
type of shock occurs as the result of a severe infection
septic
pre-load
blood coming to the heart to build up precontraction pressure. Diastolic BP
afterload.
the resistance against which the heart pumps. systolic BP.
cardiogenic shock
inadequate heart function
effect: backup of fluid into the lungs
develops when heart can't maintain sufficient output to meet demands of body
obstructive shock
cardiac tamponade, tension pneumothorax
occurs when conditions that cause mechanical obstruction of the cardiac muscle also affect pump function
distributive shock
widespread dilation of small arterioles or venules or both. As a result, blood will pool in the expanded vascular beds and tissue perfusion decreases.

(septic shock, anaphylactic shock, neurogenic shock, psychogenic shock)
septic shock
vessels leak and are unable to contract caused by severe infection in which toxins are generated by bacteria or infected cells

almost always a complication of serious surgery, injury or illness.
neurogenic shock
caused by injury or illness to part of the nervous system that controls vessel tone.
anaphylactic shock
a violent reaction to substance to which bpdy has been sensitized
each subsequent esposure is more severe
common causes are shots, stings
give epi, call med control
psychogenic shock
caused by sudden reaction of the nervous system
non life threatening causes like seeing blood or getting bad news.
hypovolemic shock
either blood loss of dehydration (fluid loss)
literally low blood volume
stages of shock
1) compensated - body can still compensate, characterized by restlessness, anxiety, Altered Mental Status, weak, rapid or absent pulse, cool clammy skin, shallow rapid breathing thirst
2) decompensated - BP is falling (but may be the last measurable thing to change) labored or irregular breathing, ashen mottled skin, absent peripheral pulses, dull eyes, dilated pupils
3) irreversible - death is imminent