MCV (a magazi): mawu olembedwa. MCV: ponseponse

Aŵerenga maselo erythrocyte kudziwa buku awo pafupifupi kapena kusanthula magazi molumikizana ndi maphunziro ena ntchito kwa masiyanidwe matenda a zosiyanasiyana magazi ndi zinthu zina pathological.

ndi maselo ofiira Kodi

Malinga ndi makhalidwe a erythrocytes (maselo ofiira), amene amapatsa apadera maselo sanali nyukiliya, magazi mawonekedwe biconcave, n'zotheka adzaweruza dziko la thanzi la munthu. Maselo erythrocyte munali kupuma pigment - chitsulo munali mapuloteni hemoglobin. Waukulu ntchito maselo a magazi kunyamula mpweya, umene uli wofunika kwa kugwira ntchito kwa ziwalo zonse mu thupi. Pa mapangidwe maselo amenewa limafanana ndi wofiira m'mafupa. Zimenezi analimbikitsa ndi erythropoietin, amene amapangidwa maselo lalikulu buku impso m'mikhalidwe hypoxic.

Normal hemoglobin kaphatikizidwe ndi mapangidwe maselo a magazi ndi zotheka pamaso pa cyanocobalamin, ndi kupatsidwa folic acid komanso ndi kotunga chokwanira cha ayoni chitsulo. Mu zokhudza zonse makope erythrocytes kulibe za 4 months. Ndiye pali kuwonongedwa kwa maselo a magazi, malo kudzitsitsa awo ndi ndulu ndi dongosolo reticuloendothelial.

Kodi zikutanthauza MCV?

MCV erythrocyte index ndi index uliri mtengo wa buku pafupifupi maselo a magazi. Pofuna kukhazikitsa matenda molondola matenda odwala, madokotala nthawi zonse mankhwala magazi. Chinawathandiza kumvetsa n'chakuti MCV akuti maselo magazi mu chikhalidwe thupi. Mu anthu athanzi, chiŵerengero maselo a magazi okwana buku magazi nthawi zonse, choncho, kukula ndipo chiwerengero sayenera kusinthidwa.

Pa chitukuko cha chifuwa, kutupa, kupanda mavitamini ndi mchere zinthu angapezeke ndi kudutsa magazi MCV-kusanthula. Chinawathandiza kumvetsa n'chakuti zotsatira kusonyeza kuvutika, umboni wa zotheka limati pathological.

index Izi limanenedwa monga ambiri matenda kusanthula magazi ndi kuphunzira osiyana.

Kodi kuwerengera MCV

Kuwerengetsa buku pafupifupi kwa maselo ofiira magazi m'pofunika kugawa kuchuluka kwa buku selo ndi chiwerengero cha maselo erythrocyte magazi. njira ina kwa kuwerengetsa hematocrit zochokera chiwerengero magawano kapena index 1 mamilimita ³ magazi ndi nambala ya maselo ofiira. Mu zikutanthauza hematocrit kuchuluka chiŵerengero pakati pa buku wa maselo a mwazi ndi okwana buku magazi.

Pa MCV kusanthula magazi, decoding chimene chikugwirizana ndi zochita za kukula kwa maselo ofiira, ndi chochepa molondola kuposa njira zina ziwiri mawerengedwe. Ichi ndi chifukwa chakuti pamene m'mimba mwake kwa maselo erythrocyte pa 5% ya m'buku lake limasintha mwa 15%. Kudalirika kwa chizindikiro ichi zinthu molakwika pamene ambiri maselo ofiira amene asintha mawonekedwe. Mwachitsanzo, ngati inu mumachitira wathunthu magazi, MCV mtengo yachibadwa ngati wodwala opezeka onse macro- ndi microcytosis.

Ziyenera adzanyamula kukumbukira kuti microspherocytes awiri ambiri anachepetsa, koma pa mlingo wofanana wa buku avareji mu osiyanasiyana wabwinobwino, ichi ndi chifukwa chake nthawi zonse analimbikitsa kuipitsa mbiri wamamamayikirosikopu magazi atengedwa.

unit wa muyeso

Unit ya muyeso wa zikutanthauza corpuscular buku (MCV) anatengedwa femtolitry (ku-) kapena micrometers kiyubiki (microns ^3).

Kodi kuwunika?

Ndi chizindikiro magazi oterewa zosiyanasiyana magazi m'thupi zofuna mankhwala enieni.

MCV zotsatira za kuwunika magazi amalola kusiyanitsa:

• microcytic magazi m'thupi, akusowa chitsulo ndi thalassemia ayoni pamene yafupika kaphatikizidwe unyolo polypeptide, mbali ya kapangidwe ka hemoglobin;
• normochromic normocytic magazi m'thupi kapena amene akufotokozera matenda aakulu, chachikulu mafupa kulephera, chifukwa yafupika ulimi wa erythropoietin;
• macrocytic magazi ndi kuperewera kwa kupatsidwa folic acid ndi cyanocobalamin pamene kuchuluka erythrocyte kukula.

Pakuti aliyense boma amafunika chithandizo chake. Kwa matenda ndi zofunika kwambiri matenda magazi kusanthula decoding MCV (zikutanthauza buku corpuscular) amalola kuti uweruze boma maselo a magazi.

Ngati chizindikiro ichi ali ndi phindu wabwinobwino, maselo ofiira a magazi otchedwa normocytic. Pa zotsatira m'munsi MCV index maselo magazi otchedwa microcytic, ndipo pa mfundo mpweya wa yao amakhulupirira macrocytic.

Kudziwa kuyan'anila za madzi electrolyte bwino mu thupi kulola magazi MCV-kusanthula decoding ntchito zimene zikusonyeza kusintha muyezo mchere. Ngati buku pafupifupi maselo a magazi zosakwana wabwinobwino, n'zotheka kulankhula za kupanda madzimadzi mu thupi la munthu. Mwachitsanzo, mu madzi m'thupi hypertonic chikhalidwe cha MCV mu magazi adatchithisira. Ngati chizindikiro pamwamba mwakale, ndiye ife tikhoza kulankhula za madzi m'thupi hypotonic.

Pa kusanthula MCV angakhudzidwe ndi zinthu zosiyanasiyana. Kuchepetsa pafupifupi erythrocyte buku zikhoza hemolysis kapena ndondomeko makina mu mankhwala Poizoni. Low magazi MCV-kusanthula decoding zimene zikusonyeza uchidakwa wodwala ndi ntchito methanol monga mankhwala akupha, ndi si zachilendo.

Norma MCV

Zikutanthauza corpuscular buku chizindikiro zimadalira m'badwo wodwala, amene amapereka magazi MCV. Wakudziko gulu lililonse m'badwo lapadera, ndipo chimaoneka mu femtolitrah. Mfundo anapereka osiyanasiyana mfundo za index izi, zomwe ziri mu osiyanasiyana kuchokera 80 100 femtolitrov odwala wamkulu.

Nthawi zambiri ndikofunika MCV mwazi mayeso mawu olembedwa. Norma ndi apamwamba anati mu akhanda. Sitiyenera upambana 140 femtolitrov. Pamene mwana limakula mfundo wabwinobwino wa index ichi ndi kuchepetsedwa. Choncho, mlingo mwana wazaka adzakhala mu osiyanasiyana kuchokera 71 mpaka 84 femtolitrov. 1 chaka mpaka zaka zisanu mtengo wa buku pafupifupi maselo a magazi ranged kuchokera 73 mpaka 85 femtolitrov. Kuyambira zaka 5 mpaka 10 akuti ndi chifukwa cha MCV kusanthula zachilendo kwa 75 87 femtolitrov, ndi yekhayo wamkulu, chizindikiro ichi anafika malamulo wamkulu.

Underreporting MCV

Ngati mtengo wa MCV mu magazi adatchithisira, umasonyeza chitukuko cha magazi m'thupi microcytic. Kukulitsa ndi kusowa kwa ayoni chitsulo mu madzi a m'magazi, pamaso pa matenda aakulu chikhalidwe ndi matenda otengera kwa makolo chitukuko cha zotupa zilonda, kutsogolera mankhwala poyizoni mukumwa mankhwala, kumwa mwauchidakwa mu thalassemia monga utachepa kaphatikizidwe unyolo polypeptide, mbali ya kapangidwe ka hemoglobin.

mfundo mpweya MCV

makhalidwe apamwamba buku pafupifupi maselo erythrocyte akusonyeza kukula kwa magazi m'thupi macrocytic ndi zinthu zina pathological kuti yodziwika ndi:

• akusowa vitamini B ₁₂ (cyanocobalamin) kuphwanya absorbability;
• folievodefitsitnoy magazi m'thupi ndi kuchepa pakumwa folic acid;
• megaloblastic magazi m'thupi chifukwa kuphwanya DNA kaphatikizidwe;
• timathawa magazi m'thupi;
• hypothyroidism, imene pali chosowa chithokomiro timadzi;
• matenda matumbo;
• matenda chiwindi;
• yafupika ntchito ya maselo pancreatic;
• matenda a m'mafupa;
• poyizoni kapena mankhwala poizoni;
• uchidakwa.

Chizindikiro MCV magazi kusanthula mwina pang'ono kuposa wabwinobwino mu akazi pamene mukumwa kulera m'thupi. Ndudu fodya akhoza kuyambitsa kuwonjezeka mu buku pafupifupi maselo a magazi.

Lingaliro la MCH

Pamodzi ndi tanthauzo la MCV, kusanthula MCH mwazi amalola kupanga masiyanidwe matenda kudziwa mitundu ya magazi m'thupi. Kumatanthauza chithunzi monga avareji erythrocyte wina chitsulo munali hemoglobin mapuloteni. Amayezedwa mawu mtheradi.

Kuwerengera phindu zikutanthauza amanena hemoglobin mu erythrocyte wina ndi kugawa hemoglobin ndende ndi nambala ya maselo erythrocyte. Poyerekeza ndi mtundu chizindikiro, MCH-kusanthula amatilola molondola kwambiri kudziwa mlingo wa mapuloteni chitsulo munali maselo ofiira a magazi.

Popeza mtengo wa index izi kopanda magazi m'thupi hyper-, hypo ndi normochromic. Normohromiyu angapezeke anthu athanzi, koma nthawi zina silipita hemolytic ndi aplastic magazi m'thupi, komanso zinthu kugwirizana ndi imfa pachimake magazi.

Pamene hypochromia kuchepa erythrocyte buku, hereinafter anatchula microcytosis kapena kuchepa hemoglobin mapuloteni mu maselo ofiira ndi buku yachibadwa. Choncho hypochromia zotheka osakaniza erythrocytes monga kukula kuchepetsedwa ndi normo- ndi macrocytes.

Hyperchromicity mawonetseredwe amapezeka kaya machulukitsidwe wa hemoglobin mapuloteni maselo erythrocyte ndipo anamupangitsa okha mabuku maselo a magazi. Ichi ndi chifukwa chakuti kuwonjezeka hemoglobin pamwamba ponseponse thupi ndi crystallization ake ndi hemolysis.