Hom Ntshav
Hom Ntshav
Ntshav yog tsim los ntawm cov hlwb uas tau da dej hauv cov kua matrix hu ua plasma. Cov hlwb tsim 45% los ntawm cov ntshav ntim thaum lwm 55% yog sawv cev los ntawm cov ntshav. Tib neeg cov ntshav tau muab faib ua 4 hom A, B, AB thiab O. Txawm hais tias ib tus neeg muaj A, B, AB lossis O pawg ntshav yog txiav txim siab los ntawm cov saw hlau luv ntawm cov suab thaj sib txuas rau daim nyias nyias lipids thiab cov proteins ntawm RBC. Ib tug neeg uas muaj ntshav hom AB muaj gangliosides nrog cov qauv A thiab B. Cov kev txiav txim ABO yog luv luv, branched oligosaccharide chains. Nrog rau qhov rhe liab hlwb ntawm 85% cov pej xeem muaj cov txiaj ntsig rehsus thiab hu ua rehsus zoo lossis RH + thiab cov uas tsis muaj nws hu ua rehsus negative lossis RH -VE.
Blood Group A
Nyob rau hauv cov ntshav ob agglutinogens tawm uas ua raws li antigens thiab hnov mob nrog cov tshuaj tiv thaiv hauv plasma. Lawv yog A thiab B feem. Cov plasma agglutinins pub dawb muaj npe hu ua a thiab b. Ib tus neeg uas muaj cov agglutinogens tshwj xeeb hauv cov hlwb liab tsis muaj qhov sib txuam agglutinin hauv plasma. Li no tus neeg uas muaj agglutinigen A nyob rau hauv cov cell liab daim nyias nyias tsis muaj agglutinin nyob rau hauv plasma thiab raug cais nyob rau hauv cov ntshav pawg A. Raws li qhov muaj ntawm rehsus yam nws muaj peev xwm ntxiv cais raws li A + VE lossis A-VE cov ntshav.
Blood Group B
Cov qe ntshav liab uas tsuas muaj B agglutinogens thiab tsis muaj cov agglutinin b sib raug hauv cov ntshav tau muab cais ua cov ntshav B. Raws li qhov muaj rhesus yam tseem ceeb nws tau muab faib ua B + VE thiab B -VE.. Cov neeg uas muaj rehsus yam tseem ceeb ntawm lawv cov qe ntshav liab nrog rau agglutinogen B hu ua B + Ve thaum cov uas tsis muaj qhov cuam tshuam rau ntawm lawv daim nyias nyias yog cais raws li B-VE cov ntshav.
Blood Group AB
Cov qe ntshav liab uas muaj ob qho tib si A thiab B agglutinogens thiab tsis muaj cov agglutinin sib raug thiab b hauv cov ntshav yog cais raws li cov ntshav AB. Raws li lub xub ntiag ntawm rhesus yam nws tau muab faib ua AB + VE thiab AB-VE. Cov neeg uas muaj ntshav AB raug hu ua tus neeg txais kev pabcuam thoob ntiaj teb tab sis lawv tuaj yeem pub dawb rau cov ntshav AB nkaus xwb.
Blood Group O
Cov qe ntshav liab tsis muaj ob qho tib si A thiab B agglutinogens thiab tsis muaj agglutinin sib raug thiab b hauv plasma raug cais ua cov ntshav O. Raws li qhov muaj rhesus yam tseem ceeb nws tau muab faib ua O + VE thiab O-VE. Cov neeg uas muaj ntshav O yog hu ua universal pub.
Summary
Kev txiav txim siab pab pawg ntshav yog qhov tseem ceeb heev tshwj xeeb tshaj yog thaum hloov ntshav. Thaum tus neeg mob tau txais cov ntshav nws tseem ceeb heev uas nws tau txais cov ntshav uas sib haum nrog nws tus kheej, nws ua rau muaj kev sib txuam uas tuaj yeem ua rau tuag taus.
