Presión intracraneal Flashcards

1
Q

Flujo sanguíneo Cerebral

A

50 a 65ml cada 100g por minuto

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2
Q

Flujo sanguíneo Cerebral total

A

750 a 900ml/min

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3
Q

Gasto cardíaco en reposo

A

15%

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4
Q

mucho CO2 ocasiona….

A

vasodilatación

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5
Q

poco CO2 ocasiona….

A

vasoconstricción

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6
Q

Concentración de oxigeno y astrocitos.

A

3.5(+-0.2) mol de oxígeno cada 100g de tejido x minuto

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7
Q

Presión de Perfusión Cerebral (PPC)

A

PPC=PAM-PIC

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8
Q

PAM

A

= presión sistólica + (2x presión diastólica)

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9
Q

PPC

A

oscila entre y 50 y 150mmHg

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10
Q

En condiciones normales PIC es…

A

inferior a 10 mmHg

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11
Q

Volumen cerebral (85%)

A

1020-1190ml

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12
Q

Líquido cefalorraquídeo (LCR) (10%)

A

120-140ml

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13
Q

Volumen sanguíneo (5%)

A

60-70ml

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14
Q

Del volumen sanguino el venoso ocupa el…

A

70%

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15
Q

Del volumen sanguíneo el sinusal ocupa el….

A

15%

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16
Q

Del volumen sanguíneo el arterial ocupa el….

A

15%

17
Q

Ley de Monro-Kelly

A

el aumento de la PIC disminuye el VS y el LCR y aumenta el VC

18
Q

Forma de medir en cm de H2O

A

/1.36 para transformar a mmHg