Izinga eliphezulu le-hemoglobin

Izinga eliphezulu le-hemoglobin libonisa amazinga aphezulu kunokujwayelekile kwe-protein equkethe insimbi ezicubuzelweni ezipula. I-Hemoglobin (ivame ukufingqiwe njenge-Hb noma i-Hgb) iyisithako esithwala i-oksijini ezicubuzelweni ezipula. I-Hemoglobin, enikeza izicubu ezibomvu umbala wazo, iyasiza ekuphatheni i-oksijini evela emaphashini kuya kweminye imizimba kanye ne-carbon dioxide ibuye emaphashini ukuze ikhishwe. Umkhawulo wokulinganisa i-hemoglobin eliphezulu uhluka kancane kusuka kwelinye ikhwalithi yezokwelapha kuya kwelinye. Ngokuvamile kuchazwa njengaphezulu kwamagremu angu-16.6 (g) we-hemoglobin ngedecilita (dL) yegazi kumadoda kanye namagremu angu-15 g/dL kwabesifazane. Ezinganeni, incazelo yokulinganisa i-hemoglobin eliphezulu ihluka ngokwezinyanga nobulili. Ukuqina kwe-hemoglobin kungase futhi kuhluke ngenxa yesikhathi sosuku, ukuthi uthambile kangakanani kanye nobude bezinga.

Izinga eliphezulu le-hemoglobin livamise kakhulu lapho umzimba wakho udinga amandla okuphatha i-oksijini aphezulu, ngokuvamile ngoba: Ufakela Uhlala endaweni ephakeme futhi ukukhiqizwa kwamaseli abomvu egazi kukhuphuka ngokwemvelo ukuze kubuyisele ukuncipha kwe-oksijini lapho Izinga eliphezulu le-hemoglobin livamise kancane ngoba: Ukukhiqizwa kwamaseli abomvu egazi kukhuphuka ukuze kuhlanganise amazinga e-oksijini aphansi ngokuqhubekayo ngenxa yokusebenza okubi kwenhliziyo noma amaphaphu. Ubuopho lwamathambo bakhiqiza amaseli abomvu egazi amaningi kakhulu. Uthathe izidakamizwa noma ama-hormone, ngokuvamile i-erythropoietin (EPO), ezishukumisa ukukhiqizwa kwamaseli abomvu egazi. Akukuvamile ukuthi uthole izinga eliphezulu le-hemoglobin kusuka ku-EPO enikezwa wena ngenxa yesifo sokugula kwesibindi. Kodwa ukusebenzisa i-EPO - ukuthola ukugxilwa ukuze kuqiniswe ukusebenza kwezemidlalo - kungabangela izinga eliphezulu le-hemoglobin. Uma unezinga eliphezulu le-hemoglobin ngaphandle kokungavamile okunye, akunakwenzeka ukuthi kubonise isimo esibuhlungu esihambisanayo. Izimo ezingabangela izinga eliphezulu le-hemoglobin zihlanganisa: I-congenital heart disease kubantu abadala I-COPD Ukuphelelwa amanzi I-Emphysema Ukwehluleka kwenhliziyo Umdlavuza wesibindi Umhlaza welaphu I-Polycythemia vera Incazelo Lapho kufanele ubona udokotela