FRA Flashcards

1
Q

Anuria + FRA

A

1) Obstructivo (95%)
2) Oclusión arteria (5%)
3) Obstrucción intratubular (menos del 1%)

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2
Q

Primera prueba a realizar ante un fracaso renal agudo

A

ECO

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3
Q

FRA + Riñones pequeños

A

IRC

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4
Q

FRA + Hidronefrosis

A

FRA obstructivo

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5
Q

Indicaciones de diálisis en FRA

A

Acidosis metabólica grave
Electrolitos elevados
Intoxicaciones
vOlumen sobrecarga
Uremia grave

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6
Q

DD FRA prerrenal y parenquimatoso

A

Prerrenal –> NaO <10-20, EFNa <1%, IIR <1, OsmO >500, Cocientes elevados
Parenquimatoso –> NaO >30, EFNa >1%, IIR >1, OsmO <350, Cocientes disminuidos

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7
Q

Causa más frecuente de FRA

A

Prerrenal

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8
Q

Tratamiento FRA prerrenal

A

Fluidoterapia

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9
Q

Excepciones FRA parenquimatoso

A

Parenquimatoso con NaO <10-20, EFNa <1%!
- Contrastes yodados
- Hemopigmentos
- NTIA sobre prerrenal
- GMN postestrepto
- NIIA por rifampicina
- Vasculitis
- Rechazo agudo de trasplante
- HTA maligna, preeclampsia, esclerodermia

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10
Q

Causa más frecuente de FRA parenquimatoso

A

Necrosis tubular aguda

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11
Q

Tratamiento FRA parenquimatoso

A

Hidratación +/- Furosemida +/- Dopamina –> NO ORINA –> DIÁLISIS

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12
Q

Fases de FRA parenquimatoso

A

1) Instauración –> reversible con fluidoterapia
2) Oligoanuria –> la más peligrosa (arritmias, EAP), HIPERTODO menos HIPOcalcemia
3) Poliuria ineficaz –> riesgo de alteraciones elecrolíticas
4) Poliuria eficaz –> Creatinina NORMAL

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