{"id":72765,"date":"2020-11-04T10:22:54","date_gmt":"2020-11-04T10:22:54","guid":{"rendered":"http:\/\/humanitasnet-new.local\/malattie\/fibrinogen-3\/"},"modified":"2025-01-13T03:17:05","modified_gmt":"2025-01-13T03:17:05","slug":"fibrinogen","status":"publish","type":"disease","link":"https:\/\/humanitas-net.humweb.webiz.team\/sl\/diseases\/fibrinogen\/","title":{"rendered":"Fibrinogen"},"content":{"rendered":"<h2 id=\"kaj-je-fibrinogen\">Kaj je fibrinogen?<\/h2>\n<p>Fibrinogen (znan tudi kot faktor I) je glikoprotein v vreten\u010darjih, ki pomaga pri nastajanju krvnih strdkov. Sestavljen je iz linearnega niza s tremi vozli\u010di, ki jih dr\u017ei zelo tanka nit, za katere se ocenjuje, da imajo premer med 8 in 15 Angstrom. Gre za glikoprotein, ki ga sintetizirajo jetra in ima pomembno vlogo pri procesu strjevanja krvi. Med normalno koagulacijo krvi v \u010dlove\u0161kem telesu koagulacijsko kaskado aktivira zimogen protrombin s pretvorbo v trombin serinske proteaze. Nato trombin pretvori topni fibrinogen v netopni fibrin. Te niti se nato s faktorjem XIII premre\u017eijo, da tvorijo krvni strdek, kadar je to potrebno v telesu.<\/p>\n<p>Prirojeno pomanjkanje fibrinogena ali motena funkcija fibrinogena lahko privede do krvavitev ali trombemboli\u010dnih zapletov ali klini\u010dno brez patolo\u0161kih ugotovitev. Pridobljeno pomanjkanje ugotovimo po hemodiluciji, izgubi krvi in \u200b\u200b\/ ali porabi, na primer pri bolnikih s travmo, v nekaterih fazah diseminirane intravaskularne koagulacije (DIC) in tudi pri sepsi. Pri bolnikih s pomanjkanjem fibrinogena je mogo\u010de popraviti krvavitev z infuzijo sve\u017ee zamrznjene plazme (FFP), krioprecipitata (s fibrinogenom bogate plazemske frakcije) ali s koncentracijo fibrinogena.<\/p>\n<p>&nbsp;<\/p>\n<h2 id=\"zakaj-meriti-raven-fibrinogena\">Zakaj meriti raven fibrinogena?<\/h2>\n<p>Fibrinogen je lahko koristen za odkrivanje pomanjkljivosti v strjevanju, pogosto ga uporabljamo pri drugih koagulacijskih testih (npr. protrombinski \u010das, tromboplastinski \u010das, aktivirani delni tromboplastinski \u010das), ki lahko dajejo nenormalne rezultate. Ravni fibrinogena je mogo\u010de izmeriti v venski krvi. V zna\u010dilnih okoli\u0161\u010dinah fibrinogen merimo v vzorcih citirane plazme v laboratoriju, vendar je mo\u017ena tudi analiza vzorcev polne krvi z uporabo tromboelastometrije (funkcija trombocitov je zavirana s citoklalasinom D). Vi\u0161je ravni so med drugim povezane s sr\u010dno-\u017eilnimi boleznimi in so lahko povi\u0161ane pri kateri koli obliki vnetja, saj gre za protein akutne faze; na primer je \u0161e posebej o\u010ditno pri \u010dlove\u0161kem gingivalnem tkivu v za\u010detni fazi parodontalne bolezni. Ravni fibrinogena se v nose\u010dnosti pove\u010dajo na povpre\u010dno 4,5 g \/ l v primerjavi s povpre\u010djem 3 g \/ l pri nose\u010dnicah.<\/p>\n<p>Normalni razpon ravni fibrinogena je od 200 do 400 mg \/ dL. Vendar so te vrednosti odvisne od laboratorija in uporabljenih metod. Nenormalni rezultati so lahko povezani s telesom, ki porabi preve\u010d fibrinogena, kot je to primer pri diseminirani intravaskularni koagulaciji (DIC), ali zaradi pomanjkanja fibrinogena, ki ga je mogo\u010de pridobiti od rojstva ali kasneje. Drugi vzroki so lahko posledica razpada fibrina (fibrinoliza) ali prekomerne krvavitve (krvavitve).<\/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=\"je-pregled-bolec-ali-nevaren\">Je pregled bole\u010d ali nevaren?<\/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-72765","disease","type-disease","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fibrinogen - 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=\"Fibrinogen - Humanitas.net\" \/>\n<meta property=\"og:description\" content=\"Kaj je fibrinogen? 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Fibrinogen (znan tudi kot faktor I) je glikoprotein v vreten\u010darjih, ki pomaga pri nastajanju krvnih strdkov. Sestavljen je iz linearnega niza s tremi vozli\u010di, ki jih dr\u017ei zelo tanka nit, za katere se ocenjuje, da imajo premer med 8 in 15 Angstrom. 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