Liquidos Y Electrolitos Flashcards

1
Q

Agua corporal total

A

60% del peso corporal

Kg x constante

Constantes 0.6 niños y adultos jóvenes, 0.5 mujeres jóvenes y hombres ancianos, 0.45 mujeres ancianas

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2
Q

Líquido intracelular

A

2/3 del ACT

Cationes K y MG

Aniones fosfatos orgánicos y proteínas

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3
Q

Líquido extracelular

A

1/3 del ACT

Aniones Na

Cationes CL y HCO3

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4
Q

Presión osmotica

A

real de partículas que tienen actividad osmotica

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5
Q

Osmolaridad serica

A

2Na + (Glu/18) + (BUN/2.8)

Normal 280-295

LIC 290

LEC 310

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6
Q

Determinantes de la presión osmotica

A

Na, Glucosa y Urea

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7
Q

Presión osmotica efectiva

A

2Na + (Glu/18)

Normal 275-285

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8
Q

Ingresos hídricos

A

Consumo 2000 ml y metabolismo 200 ml

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9
Q

Pérdidas sensibles

A

Orina 800-1200 ml

Heces 250 ml

Sudor 100 ml

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10
Q

Pérdidas insensibles

A

600 ml (75% piel y 25% pulmón)

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11
Q

Concentraciones de sodio

A

Sericas 135-145

LIC 5-15

Hueso 400

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12
Q

Hiponatremia

A

Na <135

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13
Q

Causas hiponatremia

A

Pérdida de Na y exceso de agua

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14
Q

Hiponatremia severa sintomática

A

Disminución en <24 horas o Na <120-125

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15
Q

Complicaciones hiponatremia

A

Edema cerebral, daño neuronal irreversible y herniacion del tronco encefálico

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16
Q

Fracción de excreción de Na

A

(NaO x (CrS/NaS) x Cr O) x 100

17
Q

Déficit de Na

A

(0.6 o 0.5 x peso) x (Na deseado - Na real)

18
Q

Velocidad de infusión de sol de Na

A

No >10-12 mmol en 24 hrs

19
Q

Complicación de corrección rápida de Na

A

Desmielinizacion osmotica (mielonisis pontina central)

20
Q

Cambio de Na serico por solución

A

(Na de Sol - Na serico) / (ACT +1)