I-Thrombocyte enye igama le-plaletlet, iseli legazi elibhekene ne-clotting ejwayelekile yegazi. I-thrombo "impande" isho ukuthi i-clot, futhi uzoyibona isetshenziswa ngezifo nemibandela ethinta amaplatelet nokugaya igazi.
Yiziphi Platelets Normal Do
Ama-platelets avela kumaseli awaziwa ngokuthi ama-megakaryocytes, atholakala emangeni lomthambo . Zibalulekile ekuvaleni kwegazi okuvamile.
Lokhu kusho ukuthi uma kukhona ikhefu noma unqunywe kwelinye lezitsha zakho zegazi, zihambisana nesayithi, zithumele izimpawu zamakhemikhali ukuze uthole usizo oluthe xaxa, futhi uxhumeke komunye nomunye ukwakha ipulaki. Uma kusetshenzwa ipulaki, i-coagulation (i-clotting) iqhutshwa iyasebenza futhi enezela i-fibrin ku-clot, ukuyibamba ndawonye.
Isibonelo sokuphila sangempela sokugubha kwegazi evamile uma usika umunwe wakho futhi uyeka ukuphuma, kodwa futhi kwenzeka emithanjeni yegazi emzimbeni wakho.
Uma kungekho amaplatelethi anele (isimo esibizwa ngokuthi i-thrombocytopenia) ingozi yokungalawuli okungalawulwa noma okuqhubekayo ikhula. Uma kunamaplatelet amaningi kakhulu egazini (isimo esibizwa ngokuthi i-thrombocytosis), kungase kuholele ekubunjweni okungavamile kwegazi, okungaba yingozi futhi kusongela ukuphila.
I-Aspirin nezinye izidakamizwa ezingezona izifo ezivuvukala zivimbela umsebenzi weplatelet, yingakho ungacelwa ukuthi uyeke ukuwasebenzisa isikhathi esithile ngaphambi kokuhlinzwa noma inqubo.
Okushiwo yi-Platelet Yakho
Ukubuka izinombolo, ubukhulu, kanye nempilo yamaplatelet (thrombocyte) yingxenye yokuhlolwa okuphelele kwe-Blood Count (CBC). Inani leplatelet liyinombolo ebalulekile kudokotela wakho ukuze wazi ngaphambi nangemva kokuhlinzwa ukuze aqagele izinkinga zokuphuma kwegazi nokuqeda. Ibuye futhi inombolo ebalulekile ngesikhathi i-chemotherapy ne-radiation therapy njengoba lokhu kungavimbela ukukhiqizwa kwamaplatelet emnothweni wethambo.
- I-Platelet Count (PLT): uhla olujwayelekile luyi 150-450 10 3 / microliter noma 150,000 - 450,000 nge-microliter ngayinye.
- Umthamo weplatelet ophakathi (i-MPV): ubungakanani obuvamile bama platelet. Amaplatelets amancane amancane kunama-asebekhulile, ngakho-ke inombolo ephakeme ichaza ukuthi uyayikhiqiza futhi uyayikhulula ngokushesha ngenkathi inombolo encane isho ukukhiqizwa okuguquliwe emangeni.
- Ububanzi bendawo yokusabalalisa (PDW): ukuhlukahluka ngobukhulu beplatelet, okungabonisa izimo ezithinta amaplatelets.
Izivivinyo zomsebenzi we-platelet zingase zenziwe uma kunezimpawu noma ezikhona zokuphuma kwegazi ngokweqile, futhi nokuqapha imithi ephikisana ne-plateletlet.
Yini eyenza i-Thrombocytopenia, i-Low Platelet Count?
Kunezimbangela eziningi ezingabangela ukubalwa kweplatelet ephansi. Uma uthola i-chemotherapy noma ukwelashwa kwe-radiation, ungase ube nesibalo esincane seplatelet ngenxa yemiphumela ecindezelayo kumaseli avela igazi emnothweni wakho.
Ezinye izibonelo zezimiso ezingabangela i-thrombocytopenia zifaka izifo ezithathelwanayo ezihlasela umnkantsha wamathambo, ama-autoimmune syndromes afana ne-lupus, immune thrombocytopenic purpura, i-HELLP syndrome ekukhulelwe, ene-valve senhliziyo, ama-heparin antibodies, imithi ethile, ukuphuza utshwala obungapheli, izifo zesibindi, i-sepsis ejulile, nokushisa okubuhlungu.
Inani leplatelet elingaphansi kwe-20,000 microliter ngayinye ingozi esongela ukuphila njengoba kuphuma okwenzeka ngokuzenzakalelayo futhi kube nzima ukuma. Kulelo zinga, unganikezwa i-transfusion platelet.
Iyiphi i-Thrombocytosis noma i-High Platelet Count Means Means
Ukubalwa kweplatelet ephezulu kungenzeka kusuka kusiyaluyalu somsongo wamathambo oyinhloko (isibonelo, i-thrombocytosis ebalulekile) noma ngenxa yokuvuvukala okungapheli emzimbeni, ukutheleleka, ukutholakala kwe-anemia yensimbi, noma ukususwa kwesitebe somuntu.
Ukubala okuphezulu kweplatelet kungabonakala nomdlavuza, ikakhulukazi ngomdlavuza wesisu, kanye ne-lymphoma, i-lung, i-ovarian, nomdlavuza webele.
Lokhu kucatshangwa ukuthi kungenxa yokuvuvukala okuhlobene nokulimala okugqugquzela ukwenziwa kwamaplatelet emnothweni wethambo.
Ezinye izimo ezingase zibonise i-thrombocytosis zihlanganisa izimo zokuvuvukala ezifana ne-rheumatoid arthritis ne-IBD. Ngaphezu kwalokho, ukunyuka okwesikhashana kokubalwa kweplatelet kungenzeka ngemuva kokuhlinzwa okukhulu noma ukuhlukunyezwa.
> Imithombo:
> American Association for Clinical Chemistry. Ukuhlolwa kweLeb ku-intanethi: I-Platelet Count.
> Gauer RL, Braun MM. Thrombocytopenia. Am Fam Physician . 2012 Mar 15; 85 (6): 612-22.
> Ioannis A Voutsadakis. I-Thrombocytosis njengephawu lokubikezela emdlalweni wegciwane lesisu. I-World J Gastrointest Oncol. 2014 Feb 15; 6 (2): 34-40.