<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2500-5006</journal-id>
<journal-title><![CDATA[Revista Colombiana de Nefrología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. colom. nefrol.]]></abbrev-journal-title>
<issn>2500-5006</issn>
<publisher>
<publisher-name><![CDATA[Asociación Colombiana de Nefrología e Hipertensión Arterial]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2500-50062021000200706</article-id>
<article-id pub-id-type="doi">10.22265/acnef.8.2.498</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Hipokalemia de gradiente transtubular alto: una propuesta práctica para su enfoque]]></article-title>
<article-title xml:lang="en"><![CDATA[High transtubular gradient hypokalemia: a practical proposal for its focus]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[Rodolfo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosselli]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olivares]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olivares]]></surname>
<given-names><![CDATA[Orlando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rumpf]]></surname>
<given-names><![CDATA[Paola M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pulido-Medina]]></surname>
<given-names><![CDATA[Cristian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Universitario de San José Servicio de Nefrología ]]></institution>
<addr-line><![CDATA[Bogotá D.C ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de San José de Bogotá Fundación Universitaria de Ciencias de la Salud ]]></institution>
<addr-line><![CDATA[Bogotá D.C. ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia Facultad de Ciencias de la Salud Escuela de Medicina, Grupo de Investigación ACEMED-UPTC]]></institution>
<addr-line><![CDATA[Tunja ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>8</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S2500-50062021000200706&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S2500-50062021000200706&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S2500-50062021000200706&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El potasio es un ion de predominio intracelular involucrado en múltiples funciones esenciales para mantener la homeostasis celular. Por lo anterior, sus concentraciones a nivel plasmático se encuentran estrechamente reguladas mediante el sistema renal y endocrino, además de estar afectado ante situaciones como la acidosis, cambios en la osmolaridad plasmática y concentración de otros electrolitos. La hipokalemia es un trastorno electrolítico común en la práctica clínica causado por el aporte inadecuado o pérdidas excesivas. Su enfoque diagnóstico requiere de una apropiada historia clínica que incluya antecedentes personales patológicos, farmacológicos, y un examen físico detallado con determinación del estado de volemia e hidratación del paciente, así como la medición de otros electrolitos a nivel plasmático y ocasionalmente en orina. El gradiente transtubular de potasio es una herramienta útil para direccionar posibles causas. Dentro de las causas de hipokalemia de gradiente transtubular elevado se encuentra el síndrome de Bartter.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Potassium is a predominantly intracellular ion involved in multiple essential functions to maintain cellular homeostasis. Therefore, its variations at the plasma level are tightly regulated by the renal and the endocrine systems; in addition to being affected by situations such as acidosis, changes in plasma osmolality and concentration of another electrolytes. Hypokalemia is a common electrolyte disorder in clinical practice affected by reporting excessive damage or loss. Its diagnostic approach requires a complete medical record that includes personal pathological and pharmacological information, a specific physical examination with certain conditions like patient&#8217;s blood volume and hydration status, as well as the measurement of other electrolytes at the plasma level and occasionally in urine. The transtubular potassium gradient is a useful tool to address possible causes. Bartter syndrome is one of the causes of elevated transtubular gradient hypokalemia.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Hipokalemia]]></kwd>
<kwd lng="es"><![CDATA[síndrome de Bartter]]></kwd>
<kwd lng="es"><![CDATA[síndrome de Gitelman.]]></kwd>
<kwd lng="en"><![CDATA[Hypokalemia]]></kwd>
<kwd lng="en"><![CDATA[Bartter syndrome]]></kwd>
<kwd lng="en"><![CDATA[Gitelman syndrome.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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