{"id":78590,"date":"2020-06-17T09:44:11","date_gmt":"2020-06-17T09:44:11","guid":{"rendered":"http:\/\/humanitasnet-new.local\/cure\/prosti-tiroksin\/"},"modified":"2020-06-17T09:44:11","modified_gmt":"2020-06-17T09:44:11","slug":"prosti-tiroksin","status":"publish","type":"cure","link":"https:\/\/humanitas-net.humweb.webiz.team\/sl\/treatments\/prosti-tiroksin\/","title":{"rendered":"Prosti tiroksin"},"content":{"rendered":"<h2 id=\"kaj-je-prosti-tiroksin\">Kaj je prosti tiroksin?<\/h2>\n<p>Prosti tiroksin (FT4) je \u0161\u010ditni\u010dni hormon, ki vsebuje jod in je derivat aminokisline tirozin, ki se naravno pojavlja kot l-tiroksin; njegovo kemijsko ime je tetraiodotironin. V \u0161\u010ditni\u010dnih me\u0161i\u010dkih nastaja in shranjuje kot tiroglobulin in se spro\u0161\u010da iz \u017eleze z delovanjem proteoliti\u010dnega encima. Prosti tiroksin in prosti trijodtironin (FT3) uravnavata presnovne procese v telesu. Prosti tiroksin je najbolj bogat \u0161\u010ditni\u010dnih hormonov v telesu, uravnava pa ga \u0161\u010ditni\u010dni stimulirajo\u010di hormon (TSH), ki ga proizvaja hipofiza. Prosta oblika tiroksina ni vezana na beljakovine v plazmi. Tiroksin deluje kot katalizator v telesu in vpliva na \u0161tevilne u\u010dinke, vklju\u010dno s hitrostjo presnove (poraba kisika); rast in razvoj; metabolizem ogljikovih hidratov, ma\u0161\u010dob, beljakovin, elektrolitov in vode; potrebe po vitaminu; reprodukcija; in odpornost proti oku\u017ebi. Farmacevtski pripravki tiroksina, pridobljeni iz \u017eivali ali sinteti\u010dni, se imenujejo levotiroksin.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"zakaj-meriti-raven-prostega-tiroksina\">Zakaj meriti raven prostega tiroksina?<\/h2>\n<p>S temi testi lahko ocenimo raven FT4 in posledi\u010dno pravilno delovanje \u0161\u010ditnice v telesu. Ta pregled je pogosto predpisan v kombinaciji s TSH in testom FT3. Za pomo\u010d pri diagnosticiranju nezadostno aktivne \u0161\u010ditnice (hipotiroidizem) in prekomerno aktivne \u0161\u010ditnice (hipertiroidizem) se uporabljajo testi za delovanje \u0161\u010ditnice. Uporabljajo se tudi za oceno delovanja \u0161\u010ditnice in spremljanje odzivov na zdravljenje \u0161\u010ditnice. Preiskava FT4 se uporablja tudi za diagnosticiranje stanja hipofize, pomo\u010d pri diagnozi \u017eenske neplodnosti, spremljanje ljudi z boleznijo hipofize in za zagotovitev, da \u0161\u010ditnica \u0161e vedno deluje, pa tudi za spremljanje hormonskega zdravljenja, \u010de ne deluje. Uporablja se tudi za spremljanje posameznikov z rakom \u0161\u010ditnice, pri katerih se tumorji odzivajo na TSH. Redno preverjamo ravni TSH in T4, da zagotovimo, da dobimo dovolj \u0161\u010ditni\u010dnih hormonov, da TSH ostane nizko, ne da bi bil T4 previsok.<\/p>\n<p>&nbsp;<\/p>\n<p>Kadar zdravnik sumi na bolnika naslednje znake in simptome hipertiroidizma, bo morda potreben brezpla\u010den pregled na tiroksin. Pove\u010danje sr\u010dnega utripa, tesnoba, izguba telesne te\u017ee, te\u017eave s spanjem, tresenje v rokah, \u0161ibkost, driska, ob\u010dutljivost na svetlobo, motnje vida in motnje vida (torej pojav zabuhlosti okoli o\u010di). Drugi simptomi hipotiroidizma lahko vklju\u010dujejo pove\u010danje telesne te\u017ee, suho ko\u017eo, zaprtje, hladno nestrpnost, izpadanje las, zabuhlo ko\u017eo, pove\u010dano \u0161\u010ditnico in menstrualno nepravilnost pri \u017eenskah.<\/p>\n<p>&nbsp;<\/p>\n<p>Normalne vrednosti TSH za odrasle zna\u0161ajo od 0,5 do 5,0 mU \/ L.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"standard-priprave\">Standard priprave<\/h2>\n<p>Vzor\u010denje obi\u010dajno opravijo zjutraj v bolni\u0161nici. Za ta test niso potrebne posebne priprave. Zdravnik bo pred pregledom krvi svetoval in priporo\u010dil, \u010de morate biti na te\u0161\u010de. Zdravnika obvestite o vseh zdravilih, ki jih jemljete pred preiskavo, saj lahko nekateri medicinski posegi in zdravila spremenijo \u200b\u200brezultate krvi.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"ali-je-preiskava-boleca-ali-nevarna\">Ali je preiskava bole\u010da ali nevarna?<\/h2>\n<p>Pregled ni ne bole\u010d ne nevaren. Bolnik lahko ob vstopu igle v roko ob\u010duti mravljin\u010denje, ko se odvzame kri za pregled.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"kako-se-opravlja-preiskava\">Kako se opravlja preiskava?<\/h2>\n<p>Preiskava se sestoji iz preprostega odvzema vzorca krvi.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-78590","cure","type-cure","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Prosti tiroksin - Humanitas.net<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Prosti tiroksin - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Kaj je prosti tiroksin? 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Prosti tiroksin (FT4) je \u0161\u010ditni\u010dni hormon, ki vsebuje jod in je derivat aminokisline tirozin, ki se naravno pojavlja kot l-tiroksin; njegovo kemijsko ime je tetraiodotironin. V \u0161\u010ditni\u010dnih me\u0161i\u010dkih nastaja in shranjuje kot tiroglobulin in se spro\u0161\u010da iz \u017eleze z delovanjem proteoliti\u010dnega encima. 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