{"id":3900,"date":"2026-10-12T09:36:49","date_gmt":"2026-10-12T08:36:49","guid":{"rendered":"https:\/\/wpcalc.com\/tr\/tisbi\/fena-hesaplayici\/"},"modified":"2026-10-12T09:36:49","modified_gmt":"2026-10-12T08:36:49","slug":"fena-hesaplayici","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/tr\/tisbi\/fena-hesaplayici\/","title":{"rendered":"Fraksiyonel Sodyum At\u0131l\u0131m\u0131 (FENa) Hesaplay\u0131c\u0131"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">\u0130drar ve kan de\u011ferleriyle prerenal ve intrinsik b\u00f6brek hasar\u0131n\u0131 de\u011ferlendirin<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"3900\" data-favorite-title=\"FENa\" data-favorite-url=\"https:\/\/wpcalc.com\/tr\/tisbi\/fena-hesaplayici\/\" data-favorite-excerpt=\"\u0130drar ve serum sodyum ile kreatinin de\u011ferlerinden fraksiyonel sodyum at\u0131l\u0131m\u0131n\u0131 (FENa) hesaplay\u0131n ve sonucunuzun akut b\u00f6brek hasar\u0131nda prerenal mi yoksa b\u00f6brek kaynakl\u0131 (intrinsik) bir nedeni mi i\u015faret etti\u011fini g\u00f6r\u00fcn.\" aria-label=\"Favorilere ekle\" data-favorite-icon=\"icon icon-flask\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/tr\/tisbi\/fena-hesaplayici\/\" method=\"POST\" class=\"calculator\" id=\"calculator-3900\" data-post=\"3900\"><fieldset class=\"fieldset-input is-2\"><legend class=\"sr-only\">Giri\u015f alanlar\u0131<\/legend><div class=\"field has-term\" id=\"input-1\"><label for=\"field-1\">\u0130drar sodyumu<\/label><div class=\"term\">U\u2099\u2090<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"drar_sodyumu\" id=\"field-1\" aria-describedby=\"calc-unit-1 calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"1\" max=\"300\" value=\"40\"\/><div class=\"unit\" id=\"calc-unit-1\">mmol\/L<\/div><small id=\"calc-info-1\">mEq\/L cinsinden ayn\u0131 say\u0131sal de\u011fer<\/small><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-2\">Serum sodyumu<\/label><div class=\"term\">S\u2099\u2090<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"serum_sodyumu\" id=\"field-2\" aria-describedby=\"calc-unit-2 calc-info-2\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"100\" max=\"180\" value=\"138\"\/><div class=\"unit\" id=\"calc-unit-2\">mmol\/L<\/div><small id=\"calc-info-2\">mEq\/L cinsinden ayn\u0131 say\u0131sal de\u011fer<\/small><\/div><div class=\"field has-term\" id=\"input-3\"><label for=\"field-3\">\u0130drar kreatinini<\/label><div class=\"term\">U\ua700\u1d63<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"text\" name=\"drar_kreatinini\" id=\"field-3\" aria-describedby=\"calc-info-3\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"1\" max=\"2000\" value=\"60\"\/><div class=\"grid grid-cols-1\"><select id=\"field-4\" name=\"birim\" aria-label=\"Birim\"><option value=\"mgdl\" selected>mg\/dL<\/option><option value=\"umol\">\u00b5mol\/L<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-3\">Rastgele (spot) idrar \u00f6rne\u011finden<\/small><\/div><div class=\"field has-term\" id=\"input-4\"><label for=\"field-5\">Serum kreatinini<\/label><div class=\"term\">S\ua700\u1d63<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><div class=\"field-group\"><input type=\"text\" name=\"serum_kreatinini\" id=\"field-5\" aria-describedby=\"calc-info-5\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0.1\" max=\"20\" value=\"2\"\/><div class=\"grid grid-cols-1\"><select id=\"field-6\" name=\"birim\" aria-label=\"Birim\"><option value=\"mgdl\" selected>mg\/dL<\/option><option value=\"umol\">\u00b5mol\/L<\/option><\/select><svg class=\"pointer-events-none col-start-1 row-start-1 mr-2 size-5 self-center justify-self-end text-gray-500 sm:size-4\" viewBox=\"0 0 16 16\" fill=\"currentColor\" aria-hidden=\"true\" data-slot=\"icon\">\n              <path fill-rule=\"evenodd\" d=\"M4.22 6.22a.75.75 0 0 1 1.06 0L8 8.94l2.72-2.72a.75.75 0 1 1 1.06 1.06l-3.25 3.25a.75.75 0 0 1-1.06 0L4.22 7.28a.75.75 0 0 1 0-1.06Z\" clip-rule=\"evenodd\" \/>\n            <\/svg><\/div><\/div><small id=\"calc-info-5\">\u0130drar \u00f6rne\u011fiyle ayn\u0131 zamana ait<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Yeniden hesapla\" id=\"calculate-button\" data-post=\"3900\">Hesapla<\/button><button type=\"reset\">S\u0131f\u0131rla<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Otomatik hesapla<\/label><small>Etkinle\u015ftirilirse, herhangi bir de\u011feri de\u011fi\u015ftirdi\u011finizde sonu\u00e7 otomatik olarak g\u00fcncellenir.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> FENa sonucunuz<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Sodyumun fraksiyonel at\u0131l\u0131m\u0131<\/span><span class=\"result-term\">FENa<\/span><\/span><span class=\"field-value\" id=\"result-1\" data-unit=\"%\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-2\"><span class=\"field-title\"><span>Yorum<\/span><\/span><span class=\"field-value\" id=\"result-2\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result is-column\" id=\"output-3\"><span class=\"field-title\"><span>Bu ne anlama geliyor<\/span><\/span><span class=\"field-value\" id=\"result-3\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Bu hesaplaman\u0131n ba\u011flant\u0131s\u0131n\u0131 kopyala<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Yorum b\u0131rak<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"3900\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">Bu sonu\u00e7 hakk\u0131nda ne d\u00fc\u015f\u00fcn\u00fcyorsunuz?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Be\u011fendim <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">Faydal\u0131 <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">1<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Kafam kar\u0131\u015ft\u0131 <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Hayal k\u0131r\u0131kl\u0131\u011f\u0131 <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Hatal\u0131 <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>FENa Form\u00fcl\u00fc<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">Form\u00fcl<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ \\text{FENa (\\%)} = \\frac{U_{\\text{Na}} \\times S_{\\text{Cr}}}{S_{\\text{Na}} \\times U_{\\text{Cr}}} \\times 100 \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Buradaki:<\/strong><\/p>\n<ul>\n<li>\\(U_{\\text{Na}}\\) \u2014 idrar sodyum konsantrasyonu (mmol\/L; mEq\/L olarak say\u0131sal de\u011feri ayn\u0131d\u0131r)<\/li>\n<li>\\(S_{\\text{Na}}\\) \u2014 serum sodyum konsantrasyonu (mmol\/L)<\/li>\n<li>\\(U_{\\text{Cr}}\\) \u2014 idrar kreatinin konsantrasyonu (mg\/dL veya \u00b5mol\/L)<\/li>\n<li>\\(S_{\\text{Cr}}\\) \u2014 serum kreatinin konsantrasyonu (mg\/dL veya \u00b5mol\/L)<\/li>\n<\/ul>\n<p>Form\u00fcl, b\u00f6breklerin att\u0131\u011f\u0131 sodyum miktar\u0131n\u0131 att\u0131\u011f\u0131 kreatinin miktar\u0131yla kar\u015f\u0131la\u015ft\u0131r\u0131r ve bunu filtre edilen sodyum y\u00fck\u00fcn\u00fcn y\u00fczdesi olarak ifade eder. Her \u00e7\u00f6z\u00fcnenin idrar ve serum terimleri oran olarak yer ald\u0131\u011f\u0131ndan, tutarl\u0131 kullan\u0131lan herhangi bir konsantrasyon birimi sadele\u015fir.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-2\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>FENa \u2013 Hesaplama \u00d6rne\u011fi<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>\u00d6rnek:<\/strong> akut b\u00f6brek hasar\u0131 olan bir hastan\u0131n idrar sodyumu 40 mmol\/L, serum sodyumu 138 mmol\/L, idrar kreatinini 60 mg\/dL ve serum kreatinini 2 mg\/dL olarak \u00f6l\u00e7\u00fclm\u00fc\u015ft\u00fcr.<\/p>\n<p>\\[ \\text{FENa} = \\frac{40 \\times 2}{138 \\times 60} \\times 100 = \\frac{80}{8280} \\times 100 \\approx 0.97\\% \\]<\/p>\n<p><strong>Sonu\u00e7:<\/strong> FENa \u2248 0,97%. Bu de\u011fer %1'in alt\u0131ndad\u0131r ve akut b\u00f6brek hasar\u0131n\u0131n s\u0131v\u0131 kayb\u0131 (hipovolemi) veya kalp yetmezli\u011fi gibi prerenal (hemodinamik) bir nedeni d\u00fc\u015f\u00fcnd\u00fcr\u00fcr.<\/p>\n<p>\n\r\n<\/section>\n<h2>FENa Hesaplay\u0131c\u0131 Nas\u0131l Kullan\u0131l\u0131r?<\/h2>\n<ol>\n<li>Anl\u0131k (rastgele) idrar \u00f6rne\u011finden elde edilen <strong>idrar sodyumu<\/strong> de\u011ferini mmol\/L cinsinden girin (mEq\/L'deki say\u0131yla ayn\u0131d\u0131r).<\/li>\n<li>Yakla\u015f\u0131k ayn\u0131 zamanda al\u0131nan kandan gelen <strong>serum sodyumu<\/strong> de\u011ferini mmol\/L cinsinden girin.<\/li>\n<li><strong>\u0130drar kreatinini<\/strong> de\u011ferini girin ve alan\u0131n yan\u0131ndaki birim a\u00e7\u0131l\u0131r men\u00fcs\u00fcnden mg\/dL veya \u00b5mol\/L se\u00e7in.<\/li>\n<li><strong>Serum kreatinini<\/strong> de\u011ferini ayn\u0131 zaman noktas\u0131ndan girin ve birimini ayn\u0131 y\u00f6ntemle se\u00e7in.<\/li>\n<li><strong>Fraksiyonel sodyum at\u0131l\u0131m\u0131<\/strong> de\u011ferinizi y\u00fczde olarak okuyun; sonu\u00e7la birlikte bir yorum (prerenal, belirsiz veya intrinsik renal hasar) ve sonucun ne anlama geldi\u011fine dair k\u0131sa bir a\u00e7\u0131klama da sunulur.<\/li>\n<\/ol>\n<p>Kreatinini \u00b5mol\/L cinsinden girerseniz hesaplay\u0131c\u0131 bunu otomatik olarak mg\/dL'ye \u00e7evirir (1 mg\/dL = 88,4 \u00b5mol\/L); b\u00f6ylece iki birim de ayn\u0131 FENa sonucunu verir.<\/p>\n<h2>Fraksiyonel Sodyum At\u0131l\u0131m\u0131 Nedir?<\/h2>\n<p>FENa, b\u00f6brekler taraf\u0131ndan filtre edilen sodyumun idrarla at\u0131lan k\u0131sm\u0131n\u0131n y\u00fczdesidir. Normal beslenen sa\u011fl\u0131kl\u0131 bir ki\u015fide b\u00f6brekler filtre edilen sodyumun %99'undan fazlas\u0131n\u0131 geri emer; bu nedenle FENa genellikle %1'in \u00e7ok alt\u0131ndad\u0131r. FENa'n\u0131n klasik klinik kullan\u0131m\u0131, akut b\u00f6brek hasar\u0131n\u0131n (ABH) iki ana kategorisini \u2014 prerenal ve intrinsik renal \u2014 birbirinden ay\u0131rmaya yard\u0131mc\u0131 olmakt\u0131r.<\/p>\n<p><strong>Prerenal<\/strong> durumlarda \u2014 s\u0131v\u0131 kayb\u0131, kanama, kalp yetmezli\u011fi, siroz \u2014 b\u00f6bre\u011fin kendisi sa\u011flamd\u0131r. B\u00f6brek azalan perf\u00fczyonu alg\u0131lar ve maksimum d\u00fczeyde sodyum tutar; FENa %1'in alt\u0131na d\u00fc\u015fer. <strong>Intrinsik<\/strong> hasarda, en s\u0131k olarak iskemi, sepsis veya nefrotoksik maddelere ba\u011fl\u0131 akut t\u00fcb\u00fcler nekrozda (ATN) t\u00fcb\u00fcl h\u00fccreleri hasar g\u00f6r\u00fcr ve sodyumu etkili bi\u00e7imde geri emez; FENa %2'nin \u00fczerine \u00e7\u0131kar. %1 ile %2 aras\u0131ndaki de\u011ferler belirsiz kabul edilir ve genel klinik tabloya bak\u0131larak yorumlanmal\u0131d\u0131r.<\/p>\n<p>D\u00fc\u015f\u00fck FENa, altta yatan hemodinamik sorun \u2014 \u00f6rne\u011fin intraven\u00f6z s\u0131v\u0131 replasman\u0131 ile \u2014 d\u00fczeltildi\u011finde renal fonksiyonun h\u0131zla d\u00fczelebilece\u011fini d\u00fc\u015f\u00fcnd\u00fcr\u00fcr. Y\u00fcksek FENa ise intrinsik hasara i\u015faret eder; bu durumda tedavi agresif s\u0131v\u0131 y\u00fcklemesi yerine destekleyicidir: sorumlu ila\u00e7 kesilir, sepsis tedavi edilir, elektrolit ve s\u0131v\u0131 dengesi korunur. FENa bir yatak ba\u015f\u0131 ipucudur, tan\u0131 de\u011fildir; her zaman \u00f6yk\u00fc, idrar \u00e7\u0131k\u0131\u015f\u0131, idrar analizi ve tedaviye yan\u0131tla birlikte de\u011ferlendirilmelidir.<\/p>\n<h2>Varsay\u0131mlar, S\u0131n\u0131rl\u0131l\u0131klar ve Pratik \u00d6neriler<\/h2>\n<ul>\n<li><strong>Di\u00fcretikler FENa'y\u0131 ge\u00e7ersiz k\u0131lar.<\/strong> Loop ve tiazid di\u00fcretikler sodyumu idrara zorlar ve ger\u00e7ek durum prerenal olsa bile FENa'y\u0131 %2'nin \u00fczerine \u00e7\u0131karabilir. Hasta yak\u0131n zamanda di\u00fcretik ald\u0131ysa fraksiyonel \u00fcre at\u0131l\u0131m\u0131n\u0131 (FE\u00dcre) tercih edin; %35'in alt\u0131ndaki de\u011fer prerenal nedeni destekler.<\/li>\n<li><strong>Kronik b\u00f6brek hastal\u0131\u011f\u0131 sonucu bozar.<\/strong> KBH'de ba\u015flang\u0131\u00e7taki FENa zaten y\u00fcksektir; bu y\u00fczden \"y\u00fcksek\" bir de\u011fer mutlaka akut t\u00fcb\u00fcler nekroz g\u00f6stermez. Sonucu hastan\u0131n temel b\u00f6brek fonksiyonuyla kar\u015f\u0131la\u015ft\u0131r\u0131n \u2014 <a href=\"https:\/\/wpcalc.com\/en\/medical\/egfr-calculator-ckd-epi-2021\/\">eGFR hesaplay\u0131c\u0131m\u0131z (CKD-EPI 2021)<\/a> bunu tahmin etmenize yard\u0131mc\u0131 olabilir.<\/li>\n<li><strong>Baz\u0131 \u00f6zel durumlar yan\u0131lt\u0131c\u0131 bi\u00e7imde d\u00fc\u015f\u00fck de\u011fer verir.<\/strong> Kontrast nefropatisi, rabdomyoliz ve glomer\u00fclonefrit, intrinsik hasar varl\u0131\u011f\u0131nda bile d\u00fc\u015f\u00fck FENa'ya yol a\u00e7abilir.<\/li>\n<li><strong>Zamanlama ve stabilite \u00f6nemlidir.<\/strong> FENa, b\u00f6brek fonksiyonu stabilken (h\u0131zla de\u011fi\u015fmedi\u011finde) g\u00f6r\u00fclen olig\u00fcrik ABH'de, ayn\u0131 zaman noktas\u0131nda al\u0131nan idrar ve kan \u00f6rnekleriyle en g\u00fcvenilir sonucu verir.<\/li>\n<li><strong>Hiponatremi mi hipernatremi mi?<\/strong> Serum sodyumunu FENa ile birlikte yorumlay\u0131n; hiperglisemide d\u00fczeltilmi\u015f de\u011fer gerekebilir \u2014 <a href=\"https:\/\/wpcalc.com\/tr\/tisbi\/duzeltilmis-sodyum-hesaplama\/\">d\u00fczeltilmi\u015f sodyum hesaplay\u0131c\u0131s\u0131na<\/a> bak\u0131n. Daha geni\u015f bir metabolik tablo i\u00e7in <a href=\"https:\/\/wpcalc.com\/en\/medical\/serum-osmolality-calculator\/\">serum ozmolalitesi hesaplay\u0131c\u0131s\u0131<\/a> yararl\u0131 bir tamamlay\u0131c\u0131d\u0131r; karaci\u011fer hastal\u0131\u011f\u0131nda ise <a href=\"https:\/\/wpcalc.com\/en\/medical\/meld-na-score-calculator\/\">MELD-Na skoru<\/a> sodyumu prognostik hesaba katar.<\/li>\n<\/ul>\n<p>%1'in alt\u0131 ve %2'nin \u00fcst\u00fc e\u015fikleri Espinel (JAMA, 1976) ve Miller vd. (Annals of Internal Medicine, 1978) taraf\u0131ndan yap\u0131lan klasik \u00e7al\u0131\u015fmalardan gelir. Bu hesaplay\u0131c\u0131 yaln\u0131zca bilgilendirme ve e\u011fitim ama\u00e7l\u0131d\u0131r; klinik kararl\u0131l\u0131\u011f\u0131n veya t\u0131bbi tan\u0131n\u0131n yerine ge\u00e7mez.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0130drar ve serum sodyum ile kreatinin de\u011ferlerinden fraksiyonel sodyum at\u0131l\u0131m\u0131n\u0131 (FENa) hesaplay\u0131n ve sonucunuzun akut b\u00f6brek hasar\u0131nda prerenal mi yoksa b\u00f6brek kaynakl\u0131 (intrinsik) bir nedeni mi i\u015faret etti\u011fini g\u00f6r\u00fcn.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11],"tags":[33],"class_list":["post-3900","post","type-post","status-publish","format-standard","hentry","category-tisbi","tag-tani"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/posts\/3900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/comments?post=3900"}],"version-history":[{"count":0,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/posts\/3900\/revisions"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/media?parent=3900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/categories?post=3900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/tags?post=3900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}