EMT-Chapter 15-Shock & Resuscitation

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Author:
rolliespring
ID:
229191
Filename:
EMT-Chapter 15-Shock & Resuscitation
Updated:
2013-08-05 11:16:06
Tags:
emt shock resuscitation
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Ch15
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  1. Shock(Hypoperfusion)
    Insufficient supply of O2 and other nutrients to the body cells resulting from inadequate circulation of blood.
  2. Etiologies of Shock
    • Inadequate volume
    • Inadequate pump function
    • Inadequate vessel tone
  3. Hypovolemic Shock
    • Shock caused by the loss of blood or fluid from the intravascular space resulting in a low blood volume.
    • Hemorrhagic
    • Nonhemorrhagic-burn, diarrhea, excessive sweating, over urinating
  4. Distributive Shock
    • Shock associated with a decrease in intravascular volume caused by massive system vasodilation and an increase in the capillary permeability
    • Septic-results from infection that causes vessels throughout the body to dilate and become more permeable
    • Neurogenic-damage of the spinal cord might cause damage to the sympathetic nerve fibers and cause vessel dilation
    • Anaphylactic
  5. Cardiogenic Shock
    • Poor perfusion resulting from an ineffective pump function of the heart.
    • From MI
    • From CHF
    • From beta blockers/Ca channel blockers
    • From abnormal rhythm
  6. Obstructive Shock
    • Poor perfusion state resulting from a condition that obstructs forward blood flow.
    • From tension pneumothorax
    • From pulmonic embolism
    • From pericardial tamponade-fluid accumulates in the pericardium(the sac in which the heart is enclosed)
  7. Metabolic/Respiratory Shock
    • Dysfunction in the ability of O2 to diffuse into blood.
    • Hemoglobin
  8. Stages of Shock
    • Compensatory
    • Decompensatory
    • Irreversible
  9. Compensatory Shock
    Stage of shock in which a cascade of organ and gland stimulation and hormones increase blood pressure, restores arterial wall tension, and maintains a near normal blood pressure and perfusion of vital organs
  10. Decompensatory Shock
    Stage of shock in which the body's compensatory mechanisms are no longer able to maintain a blood pressure and perfusion of the vital organs.
  11. Irreversible Shock
    Stage in which interventions cannot prevent the advance of shock to death.
  12. Resuscitation
    Bringing a patient back from a potential or apparent death
  13. Cardiac Arrest
    The cessation of cardiac function with the patient displaying no pulse, no breathing, and unresponsiveness
  14. Sudden Death
    Death of a patient within 1hr of the onset of signs and symptoms.
  15. Downtime
    The time from cardiac arrest until effective CPR; total downtime is the time from cardiac arrest until delivery to the emergency department.
  16. Return of Spontaneous Circulation(ROSC)
    Spontaneous pulse during resuscitation.
  17. Survival
    Term applied to a patient who survives cardiac arrest to be discharged from the hospital.
  18. Chain of Survival
    Series of interventions-early access, CPR, defibrillation, and ACLS-that provides the best chance for successful cardiac resuscitation.
  19. Defibrillation
    Electrical shock delivered to help the heart restore a normal rhythm.
  20. Automated External Defibrillator(AED)
    A device that can analyze the electrical activity or rhythm of the heart and deliver an electrical shock if appropriate.
  21. Asystole
    A heart rhythm indicating absence of any electrical activity in the heart.
  22. Pulseless Electrical Activity(PEA)
    A condition in which the hear generates relatively normal electrical rhythms but fails to perfuse the body adequately because of a decreased or absent cardiac output from cardiac muscle failure or blood loss.

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