aula 5 liq corpcristais
TRANSCRIPT
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Cristais
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São formados pela precipitação de sais na urina.
Seu aparecimento deve-se à elevada concentração das substâncias que os formam.
CRISTAIS DE URINA ÁCIDA: urato amorfos, cistina, ácido úrico, bilirrubina, oxalato de cálcio.
CRISTAIS DE URINA ALCALINA: fosfatos amorfos, fosfato triplo, carbonato de cálcio.
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CRISTAIS DE URINA ÁCIDA
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Cristal de Ácido Úrico
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Cristal de Ácido Úrico
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Cristal de Ácido Úrico
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Cristal de Ácido Úrico
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Ácido Úrico
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Cristal de Urato de Sódio
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Urato Amorfo
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Urato Amorfo
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Oxalato de cálcio Uratos amorfos
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Cristal de Oxalato de Cálcio
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Cristal de Oxalato de Cálcio
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CRISTAIS DE URINA ALCALINA
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Cristal de Fosfato Triplo
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Fosfato Triplo
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Fosfato Amorfo
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Cristal de Fosfato de Cálcio
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Cristal de Carbonato de Cálcio
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Cristal de Biurato de Amônio
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Cristal de Biurato de Amônio
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Biurato de amônia
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A maioria dos cristais anormais tem forma
característica, sendo também encontrados em
urina ácida ou neutra.
Os mais importantes são:
Tirosina e Leucina casos graves de hepatite
Bilirrubina hepatopatias graves
Cistina erro metabólico (não é absorvida no rim)
Colesterol raros
Cristais Anormais
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Cristal leucina
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Cristal de Tirosina
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Cristal de Tirosina
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Cristal de Cistina
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Cristal de Cistina
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• Cristal de bilirrubina
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Cristal de Colesterol
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Cristais Iatrogênicos
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Cristal de Sulfamida
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Cristal de Contraste Radiológico
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Cristal de Contraste Radiológico
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Cristais
Cristais Normais:
ácido úrico fosfato
Urato Carbonato
Oxalato Biurato
Importância Clínica Limitada
Cristais Anormais: Metabolismo: Cistina, tirosina, leucina, colesterol, bilirrubina.
Iatrogenia: Sulfonamidas, ampicilina, acyclovir, contraste radiográfico
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Característica PH Tipo de Cristal
Normal
Ácido Ácido Ácido /Alcalino Alcalino Alcalino Alcalino Alcalino Alcalino
Ácido úrico Uratos Amorfos Oxalato de cálcio Fosfato Amorfos Fosfato Triplo Carbonato Fosfato de cálcio Biurato de Amônio
Anormal Ácido Ácido Ácido Ácido Ácido
Leucina Tirosina Cistina Bilirrubina Colesterol