Desequilibrios hidro-electroliticos Flashcards

1
Q

Subdivisões principais de hiponatremia?

A

Hipovolêmica
Euvolemica
Hipervolêmica

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2
Q

O que nos permite dividir as hiponatremias +/- em de causá-las renais e não renais?

A

[Na+] urinário com cut-off de 20mM

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3
Q

Causas de hipoNa hipervolemica?

A

Se
Na urina >20nM: IRC ou aguda
Na urina < 20nM: ICC, Cirrose hepática, …

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4
Q

Causas de hipoNa hipovolemica com Na urina > 20nM

A

causas renais:

  • diurese osmótica,
  • Acetazolamida
  • trimetropim
  • pen…
  • diuréticos
  • D. Tubuloentersticiais: NTA, …
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5
Q

Causas de hipoNa hipovolemica com Na urina < 20nM

A

Causas não renais:

  • diarreia,
  • vômitos,
  • hemorragia
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6
Q

Causas de hipoNa euvolemico

A

Sempre Na urina < 20 nM

  • SIADH (+comum)
  • glomerulonefrite s
  • hipotiroidismo mod a grave
  • insuf. Adrenergica
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7
Q

O que sugere razão aldosterona/act renina plasmática >50?

A

Hiperaldosteronismo

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8
Q

Causas mais comuns de alcalose metabólica crónica?

A
  • vomito forçado
  • abuso de diuréticos
  • S. Gitelman
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9
Q

Dos diuréticos qual o principal causador de hiponatremia?

A

Trazidas

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