{"id":37841,"date":"2025-09-17T10:13:11","date_gmt":"2025-09-17T13:13:11","guid":{"rendered":"https:\/\/www.grupomedcof.com.br\/blog\/?p=37841"},"modified":"2025-09-17T10:13:13","modified_gmt":"2025-09-17T13:13:13","slug":"distubrios-eletronicos-e-acido-base-na-pediatria","status":"publish","type":"post","link":"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/","title":{"rendered":"Saibas as consequ\u00eancias dos dist\u00farbios eletr\u00f4nicos e \u00e1cido-base nas crian\u00e7as\u00a0"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-transparent ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sum\u00e1rio<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabela de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Por_que_e_tao_importante_manter_o_equilibrio\" >Por que \u00e9 t\u00e3o importante manter o equil\u00edbrio?\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Disturbios_do_Sodio\" >Dist\u00farbios do S\u00f3dio<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Hiponatremia_Na_%3C_135_mEqL\" >Hiponatremia (Na^+ &lt; 135 mEq\/L)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Hipernatremia_Na_%3E_145_mEqL\" >Hipernatremia (Na^+ > 145 mEq\/L)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Disturbios_do_Potassio\" >Dist\u00farbios do Pot\u00e1ssio<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Hipocalemia_K_%3C_30_mEqL\" >Hipocalemia (K^+ &lt; 3.0 mEq\/L)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Hipercalemia_K_%3E_55_mEqL\" >Hipercalemia (K^+ > 5.5 mEq\/L)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Disturbios_do_Calcio\" >Dist\u00farbios do C\u00e1lcio<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#%E2%80%8BHipocalcemia_CaT_%3C_80_mgdL_ou_CaI_%3C_10_mmolL\" >\u200bHipocalcemia (CaT &lt; 8.0 mg\/dL ou CaI &lt; 1.0 mmol\/L)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#%E2%80%8BHipercalcemia_CaT_%3E_11_mgdL\" >\u200bHipercalcemia (CaT > 11 mg\/dL)\u00a0<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Disturbios_do_Magnesio\" >Dist\u00farbios do Magn\u00e9sio<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Hipomagnesemia_Mg_%3C_18_mgdL\" >Hipomagnesemia (Mg &lt; 1.8 mg\/dL)\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#%E2%80%8BHipermagnesemia_Mg_%3E_30_mgdL\" >\u200bHipermagnesemia (Mg > 3.0 mg\/dL)\u00a0<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Sindrome_de_Lise_Tumoral\" >S\u00edndrome de Lise Tumoral<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Disturbios_Acido-Basicos\" >Dist\u00farbios \u00c1cido-B\u00e1sicos<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Acidose_Metabolica\" >Acidose Metab\u00f3lica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Alcalose_Metabolica\" >Alcalose Metab\u00f3lica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Acidose_Respiratoria\" >Acidose Respirat\u00f3ria<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Alcalose_Respiratoria\" >Alcalose Respirat\u00f3ria<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.grupomedcof.com.br\/blog\/distubrios-eletronicos-e-acido-base-na-pediatria\/#Seja_um_MedCofer\" >Seja um MedCofer!<\/a><\/li><\/ul><\/nav><\/div>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/Blog-MedCof-2025-09-17T101222.045-1024x576.jpg\" alt=\"\" class=\"wp-image-37851\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/Blog-MedCof-2025-09-17T101222.045-1024x576.jpg 1024w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/Blog-MedCof-2025-09-17T101222.045-300x169.jpg 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/Blog-MedCof-2025-09-17T101222.045-768x432.jpg 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/Blog-MedCof-2025-09-17T101222.045-1536x864.jpg 1536w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/Blog-MedCof-2025-09-17T101222.045-747x420.jpg 747w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/Blog-MedCof-2025-09-17T101222.045-150x84.jpg 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/Blog-MedCof-2025-09-17T101222.045-696x392.jpg 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/Blog-MedCof-2025-09-17T101222.045-1068x601.jpg 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/Blog-MedCof-2025-09-17T101222.045.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>O equil\u00edbrio de <strong>fluidos, eletr\u00f3litos e o balan\u00e7o \u00e1cido-base<\/strong> \u00e9 vital para o funcionamento do organismo, especialmente em <strong>crian\u00e7as<\/strong>. Varia\u00e7\u00f5es nesses equil\u00edbrios podem levar a dist\u00farbios que, se n\u00e3o tratados corretamente, podem ser <strong>graves<\/strong>. O corpo humano mant\u00e9m esse balan\u00e7o por meio de mecanismos complexos que envolvem os <strong>pulm\u00f5es, os rins e sistemas-tamp\u00e3o.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-por-que-e-tao-importante-manter-o-equilibrio\"><span class=\"ez-toc-section\" id=\"Por_que_e_tao_importante_manter_o_equilibrio\"><\/span><strong>Por que \u00e9 t\u00e3o importante manter o equil\u00edbrio?\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>O organismo infantil deve ter um equil\u00edbrio fisiol\u00f3gico devidamente controlado para que o crescimento seja uniforme e eficaz. J\u00e1 discutimos um pouco sobre os detalhes do desenvolvimento <a href=\"https:\/\/share.google\/4LNQUe1qBxbHP9jq0\">infantil<\/a>, mas precisamos analisar as vari\u00e1veis que podem\u00a0 alterar esse correto crescimento, como os dist\u00farbios hidroeletrol\u00edticos e \u00e1cido-base. Os principais s\u00e3o: s\u00f3dio, pot\u00e1ssio, acidose metab\u00f3lica e acidose\/alcalose respirat\u00f3ria.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-disturbios-do-sodio\"><span class=\"ez-toc-section\" id=\"Disturbios_do_Sodio\"><\/span><strong>Dist\u00farbios do S\u00f3dio<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>O s\u00f3dio (Na^+) \u00e9 o principal \u00edon positivo fora das c\u00e9lulas, exercendo grande influ\u00eancia na <strong>osmolaridade plasm\u00e1tica<\/strong>. A regula\u00e7\u00e3o do s\u00f3dio ocorre por meio de mecanismos como a <strong>sede<\/strong>, o horm\u00f4nio antidiur\u00e9tico <strong>(ADH)<\/strong> e o sistema <strong>renina-angiotensina-aldosterona<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"536\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-37-1024x536.png\" alt=\"\" class=\"wp-image-37842\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-37-1024x536.png 1024w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-37-300x157.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-37-768x402.png 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-37-1536x804.png 1536w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-37-802x420.png 802w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-37-150x79.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-37-696x365.png 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-37-1068x559.png 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-37.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Fisiologia do Sistema Renina-angiotensina-aldosterona. | Acervo de Aulas do Grupo MedCof.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hiponatremia-na-lt-135-meq-l\"><span class=\"ez-toc-section\" id=\"Hiponatremia_Na_%3C_135_mEqL\"><\/span><strong>Hiponatremia (Na^+ &lt; 135 mEq\/L)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A hiponatremia \u00e9 caracterizada pela baixa concentra\u00e7\u00e3o de s\u00f3dio no sangue. \u00c9 considerada <strong>grave se o n\u00edvel for inferior a 120 mEq\/L<\/strong>. Pode ser classificada como <strong>hipot\u00f4nica<\/strong> (perda de s\u00f3dio e reten\u00e7\u00e3o de \u00e1gua), <strong>euvol\u00eamica<\/strong> (manuten\u00e7\u00e3o do volume, mas dilui\u00e7\u00e3o do s\u00f3dio) ou <strong>hipervol\u00eamica<\/strong> (redu\u00e7\u00e3o da volemia efetiva com reten\u00e7\u00e3o de s\u00f3dio e \u00e1gua).<\/p>\n\n\n\n<p>Na <strong>hiponatremia hipot\u00f4nica<\/strong>, pode haver perda de \u00e1gua, mas a perda de s\u00f3dio \u00e9 proporcionalmente maior, levando a uma &#8220;<strong>dilui\u00e7\u00e3o<\/strong>&#8220;. A <strong>hiponatremia hipervol\u00eamica<\/strong> ocorre por <strong>falha no sensor de volume<\/strong>, levando \u00e0 libera\u00e7\u00e3o de ADH e aldosterona, que reabsorvem s\u00f3dio e \u00e1gua, resultando em hipervolemia, mas com volume ineficaz para o rim, como ocorre em casos de insufici\u00eancia card\u00edaca congestiva <strong>(ICC)<\/strong> e <strong>s\u00edndrome nefr\u00f3tica.<\/strong><\/p>\n\n\n\n<p>A gravidade dos sintomas depende do n\u00edvel de s\u00f3dio e da velocidade de instala\u00e7\u00e3o do dist\u00farbio. Eles podem variar de <strong>irritabilidade<\/strong> e <strong>cefaleia a convuls\u00f5es<\/strong>, estupor e coma em situa\u00e7\u00f5es mais graves.<\/p>\n\n\n\n<p>Em casos de sintomas neurol\u00f3gicos graves, o <strong>tratamento<\/strong> \u00e9 com <strong>solu\u00e7\u00e3o salina hipert\u00f4nica <\/strong>(NaCl 3%) em <strong>bolus de 3-5 ml\/kg<\/strong>. Em outros casos, a reposi\u00e7\u00e3o pode ser por via <strong>enteral<\/strong> com restri\u00e7\u00e3o de l\u00edquidos. A corre\u00e7\u00e3o m\u00e1xima deve ser de<strong> 10-12 mEq\/L<\/strong> por dia para evitar a <strong>desmieliniza\u00e7\u00e3o osm\u00f3tica<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hipernatremia-na-145-meq-l\"><span class=\"ez-toc-section\" id=\"Hipernatremia_Na_%3E_145_mEqL\"><\/span><strong>Hipernatremia (Na^+ > 145 mEq\/L)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u00c9 o aumento da concentra\u00e7\u00e3o de s\u00f3dio no sangue. Considerada <strong>grave se for maior que 170 mEq\/L.<\/strong>Ocorre por <strong>ingest\u00e3o h\u00eddrica insuficiente<\/strong>, <strong>perda excessiva de \u00e1gua<\/strong> (como em diabetes insipidus) ou <strong>ganho de s\u00f3dio<\/strong> (iatrog\u00eanico). A hipernatremia aguda ou a r\u00e1pida corre\u00e7\u00e3o de hiponatremia causam um aumento na osmolaridade plasm\u00e1tica, <strong>desidratando as c\u00e9lulas do sistema nervoso central<\/strong> (SNC), o que pode levar \u00e0 <strong>mielin\u00f3lise pontina<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"855\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-38-1024x855.png\" alt=\"\" class=\"wp-image-37843\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-38-1024x855.png 1024w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-38-300x251.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-38-768x641.png 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-38-503x420.png 503w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-38-150x125.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-38-696x581.png 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-38-1068x892.png 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-38.png 1353w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Nas c\u00e9lulas do SNC existe um mecanismo de defesa para varia\u00e7\u00f5es da osmolaridade. Quando ocorre aumento da osmolaridade plasm\u00e1tica, para manter o equil\u00edbrio sem causar desidrata\u00e7\u00e3o celular severa, as c\u00e9lulas produzem esses osmosis intracelulares, desde que seja um aumento gradativo. Se houver corre\u00e7\u00e3o da hipernatremia muito r\u00e1pido, a c\u00e9lula ir\u00e1 eliminar todos esses osmosis para o meio extracelular, que s\u00e3o pept\u00eddeos neurotransmissores estimulantes, podendo causar convuls\u00f5es. | Acervo de Aulas do Grupo MedCof.<\/figcaption><\/figure>\n\n\n\n<p>Os sinais e sintomas variam com a gravidade e incluem <strong>febre, taquipneia, letargia e, em casos graves, convuls\u00f5es, coma e ataxia.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"713\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-39-1024x713.png\" alt=\"\" class=\"wp-image-37844\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-39-1024x713.png 1024w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-39-300x209.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-39-768x535.png 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-39-1536x1069.png 1536w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-39-603x420.png 603w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-39-150x104.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-39-696x485.png 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-39-1068x744.png 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-39.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Diferentes sinais e manifesta\u00e7\u00f5es das hiponatremia e da hipernatremia no sistema nervoso central. Fonte: RH. Sterns, Disorders of Plasma Sodium \u2014 Causes, Consequences, and Correction. NEJM, 2015.\u00a0<\/figcaption><\/figure>\n\n\n\n<p>\u00a0A abordagem consiste em <strong>tratar a causa subjacente<\/strong>. A reposi\u00e7\u00e3o de volume deve ser cautelosa pelo risco de <strong>edema cerebral<\/strong>. A corre\u00e7\u00e3o deve ser monitorada e n\u00e3o deve ultrapassar <strong>10-12 mEq\/L por dia.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-disturbios-do-potassio\"><span class=\"ez-toc-section\" id=\"Disturbios_do_Potassio\"><\/span><strong>Dist\u00farbios do Pot\u00e1ssio<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>O pot\u00e1ssio (K^+) \u00e9 o principal c\u00e1tion dentro das c\u00e9lulas, mantido pela <strong>bomba de s\u00f3dio e pot\u00e1ssio<\/strong> \u00e9 fundamental para a <strong>fun\u00e7\u00e3o muscular<\/strong> e <strong>potencial de membrana<\/strong>. Sua concentra\u00e7\u00e3o \u00e9 regulada pela <strong>insulina<\/strong>, por <strong>beta-agonistas<\/strong> e pela <strong>aldosterona<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1008\" height=\"1024\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-40-1008x1024.png\" alt=\"\" class=\"wp-image-37845\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-40-1008x1024.png 1008w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-40-295x300.png 295w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-40-768x780.png 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-40-413x420.png 413w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-40-150x152.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-40-300x305.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-40-696x707.png 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-40-1068x1085.png 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-40.png 1181w\" sizes=\"auto, (max-width: 1008px) 100vw, 1008px\" \/><figcaption class=\"wp-element-caption\">Funcionamento da bomba de s\u00f3dio e pot\u00e1ssio. | Acervo de Aulas do Grupo MedCof.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hipocalemia-k-lt-3-0-meq-l\"><span class=\"ez-toc-section\" id=\"Hipocalemia_K_%3C_30_mEqL\"><\/span><strong>Hipocalemia (K^+ &lt; 3.0 mEq\/L)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A hipocalemia \u00e9 caracterizada por <strong>baixos n\u00edveis de pot\u00e1ssio<\/strong>, sendo <strong>grave se abaixo de 2.5 mEq\/L.<\/strong><\/p>\n\n\n\n<p>&nbsp;As causas podem incluir <strong>baixa ingest\u00e3o<\/strong>, perdas gastrointestinais <strong>(diarreia)<\/strong> ou renais (<strong>tubulopatias, diur\u00e9ticos de al\u00e7a<\/strong>) e uso de medicamentos como a <strong>anfotericina B. <\/strong>As manifesta\u00e7\u00f5es incluem <strong>fraqueza<\/strong>, <strong>paralisia muscular<\/strong> e <strong>altera\u00e7\u00f5es no ECG<\/strong>, como o surgimento da onda U.<\/p>\n\n\n\n<p>&nbsp;O tratamento, em casos graves, \u00e9 a reposi\u00e7\u00e3o por <strong>via endovenosa<\/strong>, com velocidade de <strong>0,5-1,0 mEq\/kg<\/strong>\/h. Em casos leves, a reposi\u00e7\u00e3o \u00e9 <strong>enteral<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hipercalemia-k-5-5-meq-l\"><span class=\"ez-toc-section\" id=\"Hipercalemia_K_%3E_55_mEqL\"><\/span><strong>Hipercalemia (K^+ > 5.5 mEq\/L)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A hipercalemia \u00e9 um <strong>aumento na concentra\u00e7\u00e3o de pot\u00e1ssio<\/strong>, considerada grave se aguda ou se os n\u00edveis forem <strong>superiores a 7 mEq\/L.<\/strong><\/p>\n\n\n\n<p>As causas incluem <strong>defici\u00eancia na excre\u00e7\u00e3o renal, lise celular<\/strong> (como em grandes queimados ou rabdomi\u00f3lise) e <strong>acidose metab\u00f3lica<\/strong>.<\/p>\n\n\n\n<p>&nbsp;As manifesta\u00e7\u00f5es podem ser <strong>c\u00e3ibras, parestesias, paralisia <\/strong>e, no ECG, <strong>ondas T apiculadas e sim\u00e9tricas<\/strong>, <strong>alargamento progressivo do complexo QRS<\/strong> e <strong>desaparecimento da onda P,<\/strong> ou simplesmente assintom\u00e1tica.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"854\" height=\"1024\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-41-854x1024.png\" alt=\"\" class=\"wp-image-37846\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-41-854x1024.png 854w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-41-250x300.png 250w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-41-768x921.png 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-41-350x420.png 350w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-41-150x180.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-41-300x360.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-41-696x835.png 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-41.png 928w\" sizes=\"auto, (max-width: 854px) 100vw, 854px\" \/><\/figure>\n\n\n\n<p>Em casos com ECG alterado, a primeira medida \u00e9 administrar <strong>gluconato de c\u00e1lcio<\/strong> para <strong>estabilizar a membrana card\u00edaca<\/strong> e prevenir arritmias malignas. Outras medidas de espolia\u00e7\u00e3o incluem a <strong>suspens\u00e3o de pot\u00e1ssio<\/strong>, o uso de <strong>resinas de troca<\/strong> intestinal, <strong>diur\u00e9tico de al\u00e7a<\/strong> e, em casos refrat\u00e1rios, <strong>di\u00e1lise<\/strong>. Medidas para &#8220;shunt&#8221; intracelular, como <strong>bicarbonato de s\u00f3dio<\/strong>, solu\u00e7\u00e3o polarizante (<strong>insulina + glicose<\/strong>) e <strong>beta-2 agonistas<\/strong>, podem ser usadas para mover o pot\u00e1ssio para dentro das c\u00e9lulas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-disturbios-do-calcio\"><span class=\"ez-toc-section\" id=\"Disturbios_do_Calcio\"><\/span><strong>Dist\u00farbios do C\u00e1lcio<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u200bO c\u00e1lcio (Ca^{2+}) \u00e9 essencial para diversas fun\u00e7\u00f5es, como <strong>mineraliza\u00e7\u00e3o \u00f3ssea<\/strong>, <strong>contra\u00e7\u00e3o muscular e card\u00edaca, e neurotransmiss\u00e3o<\/strong>. Ele \u00e9 regulado principalmente pela <strong>vitamina D (calcitriol), pelo PTH e pela calcitonina<\/strong>. O c\u00e1lcio i\u00f4nico \u00e9 a por\u00e7\u00e3o biologicamente ativa e sofre influ\u00eancia direta do pH.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"932\" height=\"688\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-42.png\" alt=\"\" class=\"wp-image-37847\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-42.png 932w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-42-300x221.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-42-768x567.png 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-42-569x420.png 569w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-42-80x60.png 80w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-42-150x111.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-42-696x514.png 696w\" sizes=\"auto, (max-width: 932px) 100vw, 932px\" \/><figcaption class=\"wp-element-caption\">Fisiologia do \u00edon c\u00e1lcio. | Acervo de Aulas do Grupo MedCof.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hipocalcemia-cat-lt-8-0-mg-dl-ou-cai-lt-1-0-mmol-l\"><span class=\"ez-toc-section\" id=\"%E2%80%8BHipocalcemia_CaT_%3C_80_mgdL_ou_CaI_%3C_10_mmolL\"><\/span><strong>\u200bHipocalcemia (CaT &lt; 8.0 mg\/dL ou CaI &lt; 1.0 mmol\/L)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A hipocalcemia \u00e9 caracterizada por <strong>baixos n\u00edveis de c\u00e1lcio<\/strong>. Ela pode ser causada por <strong>hipoparatireoidismo<\/strong>, <strong>defici\u00eancia de vitamina D,<\/strong> <strong>insufici\u00eancia renal cr\u00f4nica<\/strong> ou interfer\u00eancia de outros componentes plasm\u00e1ticos, como o <strong>aumento de f\u00f3sforo<\/strong> na <strong>s\u00edndrome de lise tumoral<\/strong>.&nbsp;&nbsp;<\/p>\n\n\n\n<p>As manifesta\u00e7\u00f5es variam de acordo com a gravidade. Podem incluir <strong>fraqueza muscular, tetania e os sinais de Chvostek e Trousseau<\/strong>. No ECG, a hipocalcemia se manifesta com o prolongamento do intervalo QT. &nbsp; \u200b<\/p>\n\n\n\n<p>Para o tratamento, \u00e9 indicado a reposi\u00e7\u00e3o de c\u00e1lcio por via <strong>endovenosa<\/strong> em casos sintom\u00e1ticos, com a reposi\u00e7\u00e3o de manuten\u00e7\u00e3o e vitamina D\/calcitriol em casos cr\u00f4nicos. \u00c9 importante corrigir a <strong>hipomagnesemia<\/strong> e a <strong>hipocalemia<\/strong>, se presentes.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hipercalcemia-cat-11-mg-dl\"><span class=\"ez-toc-section\" id=\"%E2%80%8BHipercalcemia_CaT_%3E_11_mgdL\"><\/span><strong>\u200bHipercalcemia (CaT > 11 mg\/dL)\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A hipercalcemia \u00e9 o <strong>aumento da concentra\u00e7\u00e3o de c\u00e1lcio<\/strong>. As causas incluem <strong>hiperparatireoidismo, hipervitaminose D, s\u00edndromes paraneopl\u00e1sicas<\/strong> e uso de medicamentos como <strong>diur\u00e9ticos tiaz\u00eddico<\/strong>s. A hipercalcemia pode causar <strong>fadiga, letargia e fraqueza<\/strong>. No ECG, o achado caracter\u00edstico \u00e9 o <strong>encurtamento do intervalo QT.<\/strong> &nbsp; \u200bO tratamento inicial \u00e9 a hidrata\u00e7\u00e3o e o uso de diur\u00e9ticos de al\u00e7a. Em casos mais graves, <strong>bifosfonatos e corticoides<\/strong> podem ser utilizados para reduzir a mobiliza\u00e7\u00e3o de c\u00e1lcio dos ossos.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-disturbios-do-magnesio\"><span class=\"ez-toc-section\" id=\"Disturbios_do_Magnesio\"><\/span><strong>Dist\u00farbios do Magn\u00e9sio<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u200bO magn\u00e9sio (Mg^{2+}) \u00e9 um \u00edon predominantemente <strong>intracelular<\/strong> que participa de diversas rea\u00e7\u00f5es enzim\u00e1ticas e \u00e9 fundamental para a <strong>contra\u00e7\u00e3o muscular e mioc\u00e1rdica.<\/strong> <\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hipomagnesemia-mg-lt-1-8-mg-dl\"><span class=\"ez-toc-section\" id=\"Hipomagnesemia_Mg_%3C_18_mgdL\"><\/span><strong>Hipomagnesemia (Mg &lt; 1.8 mg\/dL)\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u00c9 caracterizada pela baixa concentra\u00e7\u00e3o de magn\u00e9sio. A hipomagnesemia pode ser causada por <strong>perdas renais ou gastrointestinais, acidose e hipercalcemia<\/strong>. Os sintomas incluem <strong>fraqueza, espasmos, hiperreflexia e convuls\u00f5es<\/strong>. No ECG, a hipomagnesemia pode levar ao prolongamento do intervalo QT e ao risco de <strong>Torsades de Pointes<\/strong> (taquicardia ventricular polim\u00f3rfica).&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"221\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-43-1024x221.png\" alt=\"\" class=\"wp-image-37848\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-43-1024x221.png 1024w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-43-300x65.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-43-768x166.png 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-43-1536x332.png 1536w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-43-150x32.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-43-696x151.png 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-43-1068x231.png 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-43.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Prolongamento do intervalo QT. Fonte: <a href=\"https:\/\/litfl.com\/polymorphic-vt-and-torsades-de-pointes-tdp\/\">https:\/\/litfl.com\/polymorphic-vt-and-torsades-de-pointes-tdp\/<\/a>\u00a0 &#8211; acesso 25\/11\/2023\u00a0\u00a0\u00a0<\/figcaption><\/figure>\n\n\n\n<p>A reposi\u00e7\u00e3o de magn\u00e9sio por via <strong>endovenosa<\/strong> \u00e9 indicada em casos sintom\u00e1ticos. \u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hipermagnesemia-mg-3-0-mg-dl\"><span class=\"ez-toc-section\" id=\"%E2%80%8BHipermagnesemia_Mg_%3E_30_mgdL\"><\/span><strong>\u200bHipermagnesemia (Mg > 3.0 mg\/dL)<\/strong>\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A hipermagnesemia \u00e9 o aumento da concentra\u00e7\u00e3o de magn\u00e9sio. &nbsp; A causa geralmente \u00e9 <strong>iatrog\u00eanica<\/strong> ou ocorre em <strong>neonatos<\/strong> de m\u00e3es que usaram sulfato de magn\u00e9sio para <strong>DHEG<\/strong> (doen\u00e7a hipertensiva espec\u00edfica da gravidez).&nbsp; Em n\u00edveis acima de 5,0 mg\/dL, pode causar <strong>hipotens\u00e3o<\/strong>, bloqueio atrioventricular total <strong>(BAVT)<\/strong> e <strong>perda de reflexos tendinosos.<\/strong> &nbsp; \u200b<\/p>\n\n\n\n<p>O tratamento envolve <strong>hidrata\u00e7\u00e3o<\/strong>, uso de <strong>diur\u00e9ticos<\/strong> e, em casos graves, <strong>gluconato de c\u00e1lcio<\/strong> para estabilizar a membrana card\u00edaca. &nbsp; \u200b<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-sindrome-de-lise-tumoral\"><span class=\"ez-toc-section\" id=\"Sindrome_de_Lise_Tumoral\"><\/span><strong>S\u00edndrome de Lise Tumoral<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u200bA s\u00edndrome de lise tumoral (SLT) \u00e9 uma <strong>emerg\u00eancia oncol\u00f3gica<\/strong> que ocorre quando c\u00e9lulas tumorais se rompem, liberando seu conte\u00fado no sangue. A lise celular maci\u00e7a libera <strong>pot\u00e1ssio, fosfato e \u00e1cidos nucleicos<\/strong>. Isso leva a uma <strong>tr\u00edade de dist\u00farb<\/strong>ios eletrol\u00edticos: hipercalemia, hiperfosfatemia e hipocalcemia (o c\u00e1lcio se precipita com o excesso de fosfato). O aumento de \u00e1cidos nucleicos causa <strong>hiperuricemia<\/strong>. As consequ\u00eancias incluem <strong>insufici\u00eancia renal aguda<\/strong>, <strong>arritmias<\/strong>, <strong>convuls\u00f5es<\/strong> e, em casos graves, <strong>morte s\u00fabita<\/strong>.&nbsp;&nbsp;&nbsp;<\/p>\n\n\n\n<p>A preven\u00e7\u00e3o \u00e9 a melhor abordagem e inclui <strong>hiper-hidrata\u00e7\u00e3o<\/strong> para aumentar o d\u00e9bito urin\u00e1rio e reduzir a precipita\u00e7\u00e3o de cristais. O <strong>alopurinol<\/strong> \u00e9 usado para reduzir a produ\u00e7\u00e3o de \u00e1cido \u00farico. Em fase terap\u00eautica, a <strong>Rasburicase<\/strong> pode ser usada para degradar o \u00e1cido \u00farico. A reposi\u00e7\u00e3o de c\u00e1lcio s\u00f3 \u00e9 indicada se houver <strong>hipocalcemia<\/strong> sintom\u00e1tica, pois pode aumentar a forma\u00e7\u00e3o de cristais de c\u00e1lcio e fosfato. <strong>Di\u00e1lise<\/strong> \u00e9 a \u00faltima inst\u00e2ncia em casos refrat\u00e1rios.&nbsp;&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-disturbios-acido-basicos\"><span class=\"ez-toc-section\" id=\"Disturbios_Acido-Basicos\"><\/span><strong>Dist\u00farbios \u00c1cido-B\u00e1sicos<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"534\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-45-1024x534.png\" alt=\"\" class=\"wp-image-37850\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-45-1024x534.png 1024w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-45-300x157.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-45-768x401.png 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-45-1536x802.png 1536w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-45-805x420.png 805w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-45-150x78.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-45-696x363.png 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-45-1068x557.png 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/09\/image-45.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Fisiologia da metabolismo \u00e1cido-base. | Acervo de Aulas do Grupo MedCof.\u00a0<\/figcaption><\/figure>\n\n\n\n<p>O equil\u00edbrio \u00e1cido-base \u00e9 mantido principalmente pelos <strong>pulm\u00f5es<\/strong> (eliminando ou retendo CO<sub>2<\/sub>) e pelos <strong>rins<\/strong> (eliminando ou retendo H^+ e bicarbonato (HCO<sup>3-<\/sup>). Os dist\u00farbios s\u00e3o classificados como <strong>metab\u00f3licos<\/strong> (relacionados ao bicarbonato) ou <strong>respirat\u00f3rios<\/strong> (relacionados ao CO<sub>2<\/sub>).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-acidose-metabolica\"><span class=\"ez-toc-section\" id=\"Acidose_Metabolica\"><\/span><strong>Acidose Metab\u00f3lica<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Diagnosticada com <strong>pH &lt; 7,35 e bicarbonato &lt; 22.<\/strong><\/p>\n\n\n\n<p>Ocorre por aumento na produ\u00e7\u00e3o de <strong>\u00e1cidos end\u00f3genos<\/strong> (como lactato ou ceto\u00e1cidos), <strong>perda de bases<\/strong> (diarreia) ou <strong>diminui\u00e7\u00e3o da excre\u00e7\u00e3o renal<\/strong> de \u00e1cidos (insufici\u00eancia renal). A gravidade \u00e9 definida por um <strong>pH &lt; 7,20<\/strong>, o que pode causar <strong>vasodilata\u00e7\u00e3o arterial, taquicardia e hipercalemia.<\/strong><\/p>\n\n\n\n<p>O foco \u00e9 tratar a <strong>causa base<\/strong>. A corre\u00e7\u00e3o com <strong>bicarbonato<\/strong> \u00e9 pouco usada e s\u00f3 \u00e9 considerada em casos graves (pH &lt; 7,1 e bicarbonato &lt; 10).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-alcalose-metabolica\"><span class=\"ez-toc-section\" id=\"Alcalose_Metabolica\"><\/span><strong>Alcalose Metab\u00f3lica<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Caracterizada por <strong>pH &gt; 7,45 e bicarbonato &gt; 26.<\/strong><\/p>\n\n\n\n<p>As principais causas incluem perdas de \u00e1cido clor\u00eddrico pelo trato gastrointestinal (como em <strong>v\u00f4mitos<\/strong>), uso de <strong>diur\u00e9ticos<\/strong> e <strong>hiperaldosteronismo<\/strong>.<\/p>\n\n\n\n<p>O tratamento visa corrigir a <strong>causa<\/strong>, como a administra\u00e7\u00e3o de <strong>antiem\u00e9ticos<\/strong> ou a <strong>suspens\u00e3o de diur\u00e9ticos<\/strong>. A reposi\u00e7\u00e3o de <strong>cloro e pot\u00e1ssio \u00e9 fundamental.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-acidose-respiratoria\"><span class=\"ez-toc-section\" id=\"Acidose_Respiratoria\"><\/span><strong>Acidose Respirat\u00f3ria<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Diagnosticada com <strong>pH &lt; 7,35 e CO_2 &gt; 45.<\/strong><\/p>\n\n\n\n<p>&nbsp;Ocorre por <strong>hipoventila\u00e7\u00e3o<\/strong>, que pode ser causada por doen\u00e7as respirat\u00f3rias, neuromusculares, intoxica\u00e7\u00f5es ou obesidade extrema.<\/p>\n\n\n\n<p>&nbsp;O tratamento \u00e9 focado em <strong>suporte ventilat\u00f3rio<\/strong> e na <strong>corre\u00e7\u00e3o da causa subjacente<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-alcalose-respiratoria\"><span class=\"ez-toc-section\" id=\"Alcalose_Respiratoria\"><\/span><strong>Alcalose Respirat\u00f3ria<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Caracterizada por <strong>pH &gt; 7,45 e CO_2 &lt; 35.<\/strong><\/p>\n\n\n\n<p>&nbsp;A principal causa \u00e9 a <strong>hiperventila\u00e7\u00e3o<\/strong>, que pode ser desencadeada por choro, dor, ansiedade, febre, doen\u00e7as respirat\u00f3rias ou neurol\u00f3gicas.<\/p>\n\n\n\n<p>&nbsp;O tratamento tamb\u00e9m \u00e9 direcionado \u00e0 <strong>causa base<\/strong>. Em casos de ansiedade ou choro, pode-se <strong>reinalar o CO<\/strong><strong><sub>2<\/sub><\/strong> expirado respirando em um &#8220;saco&#8221;.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.reclameaqui.com.br\/premio\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"320\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2024\/12\/Banner-MedCof-Plus-2200x460-17-1024x320.png\" alt=\"\" class=\"wp-image-37761\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2024\/12\/Banner-MedCof-Plus-2200x460-17-1024x320.png 1024w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2024\/12\/Banner-MedCof-Plus-2200x460-17-300x94.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2024\/12\/Banner-MedCof-Plus-2200x460-17-768x240.png 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2024\/12\/Banner-MedCof-Plus-2200x460-17-1536x480.png 1536w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2024\/12\/Banner-MedCof-Plus-2200x460-17-1344x420.png 1344w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2024\/12\/Banner-MedCof-Plus-2200x460-17-150x47.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2024\/12\/Banner-MedCof-Plus-2200x460-17-696x218.png 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2024\/12\/Banner-MedCof-Plus-2200x460-17-1068x334.png 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2024\/12\/Banner-MedCof-Plus-2200x460-17.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-seja-um-medcofer\"><span class=\"ez-toc-section\" id=\"Seja_um_MedCofer\"><\/span><strong>Seja um MedCofer!<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Quer garantir a sua aprova\u00e7\u00e3o nas provas de resid\u00eancia m\u00e9dica? Ent\u00e3o conhe\u00e7a o Grupo MedCof e a metodologia que j\u00e1 aprovou mais de 20 mil residentes pelo pa\u00eds. Por fim, voc\u00ea pode acessar o nosso canal do youtube e ver o nosso material de revis\u00e3o e corre\u00e7\u00e3o.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"youtube-embed\" data-video_id=\"\"><iframe loading=\"lazy\" title=\"Resid\u00eancia M\u00e9dica R+ Pediatria: DIST\u00daRBIOS \u00c1CIDO-B\u00c1SICOS\" width=\"696\" height=\"392\" src=\"https:\/\/www.youtube.com\/embed\/6YcwUVA-_Xk?feature=oembed&#038;enablejsapi=1\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>O equil\u00edbrio de fluidos, eletr\u00f3litos e o balan\u00e7o \u00e1cido-base \u00e9 vital para o funcionamento do organismo, especialmente em crian\u00e7as. Veja mais!<\/p>\n","protected":false},"author":21,"featured_media":37851,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[3193,3108],"ppma_author":[3617],"class_list":{"0":"post-37841","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-pediatria","8":"tag-disturbios-hidroeletrolitico","9":"tag-pediatria-intensiva"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.3 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Saibas as consequ\u00eancias dos dist\u00farbios eletr\u00f4nicos e \u00e1cido-base nas crian\u00e7as\u00a0 - Blog de Medcof: conte\u00fados, editais, revalida e mais! e<\/title>\n<meta name=\"description\" content=\"O equil\u00edbrio de fluidos, eletr\u00f3litos e o balan\u00e7o \u00e1cido-base \u00e9 vital para o funcionamento do organismo, especialmente em crian\u00e7as. 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