Peds shock and resuscitation Flashcards Preview

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Flashcards in Peds shock and resuscitation Deck (6)
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1
Q

Fick equation

A

DO2 = CAO2 x CO

Ox delivery = arterial O2 content x cardiac output

2
Q

Equation for cardiac output

A

CO = HR x SV

children more HR dependent due to myocardial immaturity

SV- mycoardial contractility, preload, afterload

(modify SVR to change preload/afterload; pharm interventions to alter contractility)

3
Q

Stages of shock

A

Compensated - neurohumoral responses preserve perfusion; may be reversible without intervention

Uncompensated- requires intervention

Irreversible shock = no response to therapeutic interventions

4
Q

Hypovolemic shock

A
  • Most common cause of shock in kids, esp with dehydration

- loss of and/or decreased intake of fluid or hemorrhage

5
Q

Cardiogenic shock

A

pump failure resulting in decreased blood getting to the body

  • Cardiac dysfunction or damage
    (i. e. congenital anomoly, post-op; infection/myocarditis, sepsis–infmammatory mediators; rhythm disturbances (SVT); Mechanical/trauma)

Mechanical/trauma = tamponade, Pulmonary embolism, pneumothorax

6
Q

Distributive shock

A

abnormal vasomotor tone leads to alteree flow distribution despite normal or high CO

  • Sepsis
  • Neurogenic
  • Toxins (pharmacologic, chemicals)