MCV (a jini gwajin): kwafi. MCV: na kullum

Kirgawa yawan erythrocyte Kwayoyin domin sanin su talakawan girma ko jini bincike a tare da sauran nazarin aka yi amfani da bambanci ganewar asali da siffofin daban-daban na anemia da kuma sauran pathological yanayi.

Mene ne ja jini Kwayoyin

Bisa ga halaye na erythrocytes (ja jini Kwayoyin), wanda su ne sosai na musamman ba-nukiliya Kwayoyin, jini biconcave siffar, yana yiwuwa ya yi hukunci a Jihar kiwon lafiya na mutum. A erythrocyte Kwayoyin dauke numfashi pigment - baƙin ƙarfe-dauke da furotin haemoglobin. Babban aiki na ja jini Kwayoyin kawo oxygen, wanda yana da muhimmanci ga aiki na duk gabobin a cikin jiki. A lokacin da samuwar wadannan Kwayoyin yayi dace da ja bargo. Wannan tsari ne da kara kuzari da erythropoietin, wanda aka samar a cikin manyan girma koda Kwayoyin karkashin hypoxic yanayi.

Al'ada haemoglobin kira da kuma samuwar ja jini Kwayoyin mai yiwuwa ne kawai a gaban cyanocobalamin, da kuma folic acid, kazalika da wani isasshen wadata na baƙin ƙarfe ions. A cikin tsari dabam dabam erythrocytes zama game da 4 watanni. To, akwai halakar da maikacin jini, da wani wuri don su wulakanci ne baƙin ciki, kuma reticuloendothelial tsarin.

Me ake nufi da MCV?

MCV erythrocyte index ne wani index cewa characterizes tamanin da talakawan girma na ja jini Kwayoyin. Domin kafa wani cikakken ganewar asali da cutar ga marasa lafiya, likitoci ko da yaushe rubũta jini count. Deciphering MCV ce maikacin jini a cikin jikin mutum yanayin. A lafiya mutane, da rabo daga ja jini Kwayoyin yi total jini girma ne m, sabili da haka, su size da kuma yawan kamata ba a canza.

A kan ci gaban allergies, da ciwon kumburi, rashin bitamin da kuma ma'adinai abubuwa za a iya samu ta hanyar wucewa da jini MCV-bincike. Deciphering sakamakon nuna munanan, shaidar yiwu pathological jihohi.

Wannan index aka bayyana a matsayin a cikin janar na asibiti bincike na jini da kuma a raba binciken.

Yadda yin lissafi da MCV

Don lissafi da talakawan girma na mai ja jini cell wajibi ne a raba da adadin cell girma da total number of erythrocyte jini Kwayoyin. Wani hanya domin kirga hematocrit dangane da rabo lambar ko index zuwa 1 mm ³ na jini da yawan ja jini Kwayoyin. A karkashin nufin hematocrit yawan rabo tsakanin girma na jini Kwayoyin da total jini girma.

A MCV jini analysis, dikodi mai na wanda aka haɗa tare da kima da girman da ja da maikacin jini, da aka dauke kasa daidai fiye da sauran hanyoyi guda biyu da na lissafi. Wannan shi ne saboda gaskiyar cewa a lokacin da diamita na erythrocyte Kwayoyin a kan 5% na ta girma da aka canza daga 15%. A AMINCI wannan nuna alama iya gurbata a lokacin da wani babban yawan ja jini Kwayoyin cewa sun canja siffar. Alal misali, idan ka gudanar da cikakken jini count, MCV darajar ne al'ada idan wani haƙuri da aka samu a duka biyu macro- da microcytosis.

Ya kamata a haifa tuna cewa microspherocytes diamita aka kullum undervalued, amma a wannan kudi na talakawan girma ne a cikin al'ada fuska, wanda shi ne dalilin da ya sa shi ne ko da yaushe shawarar shafa bincike da madubin likita na jini dauka.

naúrar na ji

A sashi ne na auna na nufin corpuscular girma (MCV) dauka femtolitry (FL) ko cubic micrometers (microns ^3).

Menene analysis?

Tare da wannan jini siga gane asali daban-daban iri anemia bukata magani na musamman.

MCV sakamakon jini analysis damar rarrabe tsakanin:

• microcytic anemia, iron karanci da kuma thalassemia ions lokacin da rage kira na a polypeptide sarkar, wani ɓangare na tsarin haemoglobin.
• normochromic normocytic anemia ko wanda tasowa a kullum cututtuka, da farko bargo gazawar, saboda rage samar da erythropoietin.
• macrocytic anemia tare da wani rashi na folic acid da kuma cyanocobalamin a lokacin da ya karu erythrocyte size.

Domin kowace jiha bukatar da kansa magani. Domin ganewar asali yana da muhimmanci sosai asibiti jini analysis, bidiyon dikodi MCV (nufi corpuscular girma) ba ka damar yin hukunci a Jihar ja jini Kwayoyin.

Idan wannan nuna alama yana da wata al'ada darajar, da ja jini Kwayoyin suna kira normocytic. A ƙananan sakamakon MCV index of jini Kwayoyin kira microcytic, kuma a inflated dabi'u na su yi imani macrocytic.

Ƙayyade take hakki na ruwa-electrolyte balance a cikin jiki kyale jini MCV-bincike, bidiyon dikodi yi wanda ya nuna wani canji a cikin gishiri balance. Idan talakawan girma na ja jini Kwayoyin kasa da al'ada, yana yiwuwa ya yi magana game da rashin ruwa a cikin jikin mutum. Alal misali, a cikin dehydration hypertonic yanayin MCV a jini gwajin saukar da. Idan nuna alama a sama na kullum, sa'an nan ba za mu iya magana game da dehydration hypotonic.

A bincike na MCV za a iya rinjayi daban-daban dalilai. Rage talakawan erythrocyte girma iya sa hemolysis ko inji tsari a cikin gubar dalma mahadi. Low jini MCV-bincike, dikodi mai wanda ya nuna haƙuri da shan barasa da kuma yin amfani da methanol a matsayin mai guba abu, shi ne kuma ba nadiri.

Norma MCV

Rõwa corpuscular girma nuna alama dogara a kan haƙuri ta shekaru, wanda ya ba da wani jini gwajin MCV. Kullum a cikin kowane shekaru kungiyar zai kasance na musamman, da kuma shi ne aka bayyana a cikin femtolitrah. Standards kafa kewayon dabi'u na wannan index, wanda yake a cikin kewayon daga 80 zuwa 100 femtolitrov adult marasa lafiya.

A lokuta da dama, yana da muhimmanci sosai MCV-jini gwajin kwafi. Norma ne mafi girma lura a jarirai. Yana kada wuce 140 femtolitrov. Kamar yadda yaro ke tsiro da al'ada dabi'u na wannan index an rage. Saboda haka, kudi ga shekaru baby zai zama a cikin kewayon daga 71 zuwa 84 femtolitrov. Daga shekara 1 da kuma har zuwa shekaru biyar na shekaru tamanin da talakawan girma na ja jini Kwayoyin jeri daga 73 zuwa 85 femtolitrov. An fara daga 5 zuwa shekaru 10 da aka dauke su sakamakon al'ada MCV analysis daga 75 zuwa 87 femtolitrov, kuma kawai ƙarfinsa, wannan nuna alama kai adult norms.

Underreporting MCV

Idan darajar MCV a jini gwajin saukar, shi ya nuna ci gaban da microcytic anemia. Tasowa da shi tare da wani kasawa na baƙin ƙarfe ions a cikin jini jini, kasancewar wani kullum yanayi cututtuka da kuma hereditary cututtuka, da ci gaban m marurai, gubar dalma mahadi shan wasu magunguna, barasa zagi, a thalassemia kamar yadda rage kira na a polypeptide sarkar, wani ɓangare na tsarin haemoglobin.

Inflated dabi'u MCV

Dagagge dabi'u na talakawan girma na erythrocyte Kwayoyin nuna ci gaban macrocytic anemia da kuma sauran pathological yanayin da ake halin da:

• rashi na bitamin B ₁₂ (cyanocobalamin) a take hakkin absorbability.
• folievodefitsitnoy anemia da folic acid karancin;
• megaloblastic anemia saboda take hakkin DNA kira.
• pernicious anemia.
• hypothyroidism, a cikinta akwai wata rashin thyroid hormone.
• hanji cututtuka.
• hanta cututtuka.
• rage aiki na pancreatic Kwayoyin.
• cututtuka na bargo.
• dalma mai guba ko magani.
• shan barasa.

Nuna alama MCV jini analysis iya zama dan kadan fi al'ada a mata a lokacin da shan hormonal hana. Shan taba sigari kuma iya sa da karuwa a cikin talakawan girma na ja jini Kwayoyin.

A ra'ayi na MCH

Tare da definition of MCV, MCH-jini analysis damar yin bambanci ganewar asali domin sanin siffofin anemia. Yana nufin da siffa kamar yadda wani talakawan na daya erythrocyte baƙin ƙarfe-dauke da haemoglobin gina jiki. Auna a cikakkar sharuddan.

Lissafi da nufin darajar haemoglobin abun ciki a cikin daya erythrocyte ta rarraba haemoglobin taro da yawan erythrocyte Kwayoyin. A kwatanta da wani launi nuna alama, MCH-analysis yale mu mu more daidai sanin matakin na baƙin ƙarfe-dauke da furotin a ja jini Kwayoyin.

Ganin darajar wannan index ne ya zama ruwan dare anemia hyper-, hypo da normochromic. Normohromiyu za a iya samu a lafiya mutane, amma wani lokacin shi accompanies hemolytic da aplastic anemia, kazalika da yanayin hade tare da m jini hasãra.

Lokacin da hypochromia wani karu erythrocyte girma, nan gaba koma microcytosis ko karu a haemoglobin furotin a ja jini Kwayoyin tare da wata al'ada girma. Kamar wancan hypochromia yiwu hade tare da erythrocytes a matsayin rage girman da tare da normo- da macrocytes.

Hyperchromicity bayyanuwar auku ko da jikewa na haemoglobin gina jiki erythrocyte Kwayoyin da ya sa kawai kundin na ja jini Kwayoyin. Wannan shi ne saboda cewa da karuwa a haemoglobin sama da physiological na kullum ne ta crystallization kuma hemolysis.