Choc Circulatoire Flashcards

1
Q

Formule DC

A

DC = FC X VE

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2
Q

Cause la + freq choc*

A

Hypoperfusion

Hypovol

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3
Q

Types de chocs***

A
Circulatoire:
Hypovol
Cardiogenique
Distributive
Obstructive 

Hypoxie
Métabolique

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4
Q

Signes cliniques chien vs chat

A

Chien: D+ hémorragique
Chat: pulmonaire

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5
Q

Dommages cellule hypoxie

A
Cytokines = inflamm
Voie anaerobie = lacTate = acidose
Na et ca intra cell
Dommages memb = Active coagulation = caillots
Radicaux libres lors de réperfusion
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6
Q

Exemples de causes distributive (1) hypoxique (3) et met (5)

A

Distr: histamine
Hypoxie: problème Hb, anémie, hypoxemie (probl pulmonaire)
Met: cyanure, mitochondries, hypoglycémie, cytokines, coup de chaleur

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7
Q

Nommer un choc ou RVP est diminuée

A

Distributive (vasodil)

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8
Q

Signes classique chat

A

Bradycardie hypothermie hypotension

Pas de tachypnee

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9
Q

Signes chien choc distributive

A

Muqueuses hyperemiques, tachycardie, tachypnee

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10
Q

Mécanismes compensatoires **

A

Braorecept captent pression = augm sympathique = vasoconstr per
Chémorécepteur captent co2 et H+ = idem
Vasoconstricteurs actives par sympathique = CrH, ACTH, Cortisol, EP
RAAS = vasoconstr ++ et rétention eau N’a
Mec de la soif = ADH hypothal: vasoconstr, rétention N’a et eau
Redistribution fluides cap vers sang

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11
Q

Phases choc

A

Compensatoire
Decompensatoire précoce
decompensatoire tardive

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12
Q

Fluides contrindiqués quand?

A

Choc cardiogenique

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13
Q

Dans le temps ordre des mec compensatoires

A

1- barorecept et chémorécepteur (sec)
2- RAAS (min-h)
3- starling, ADH (1-48h)

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14
Q

Choc cryptique

A

Probl a/n micro circulation

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15
Q

Tx choc selon type de choc

A

Fluides sauf cardiogenique (pas hypertonique si déshydraté)
O2 si hypoventilation
Distributif: vasopresseurs
Cardiogenique: médoc inotrope et vasodilatateurs

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