Cov txheej txheem:
Video: Yuav ua li cas platelets tsim?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Platelets yog tsim nyob rau hauv cov pob txha pob txha, tib yam li cov qe ntshav liab thiab feem ntau ntawm cov qe ntshav dawb. Raws li megakaryocytes tsim mus rau hauv cov hlwb loj, lawv tau ua cov txheej txheem ntawm kev faib ua feem uas ua rau tso tawm ntau dua 1,000, cov platelets rau megakaryocyte.
Ib qho ntxiv, muaj pes tsawg platelets raug tsim nyob rau ib hnub?
1011 cov platelets
Ib sab saum toj no, cov platelets tsim sai npaum li cas? Feem ntau, koj muaj nyob qhov twg los ntawm 150, 000 txog 450, 000 cov platelets ib microliter ntawm cov ntshav ncig. Vim txhua tus platelet nyob tsuas yog 10 hnub, koj lub cev txuas ntxiv koj li platelet muab los ntawm tsim tawm tshiab cov platelets hauv koj lub cev pob txha.
Yog li ntawd, dab tsi yog platelets thiab lawv tsim li cas?
Platelets tau tsim thaum lub sijhawm hematopoiesis hauv cov txheej txheem hu ua thromopoiesis, lossis tsim tawm ntawm thrombocytes. Thrombopoiesis tshwm sim los ntawm cov kab mob myeloid progenitor hauv cov pob txha pob txha, uas sib txawv rau hauv promegakaryocytes thiab tom qab ntawd mus rau hauv megakaryocytes.
Dab tsi yog 3 lub luag haujlwm ntawm platelets?
Platelets muaj cov haujlwm hauv qab no:
- Kev zais cov vasoconstrictors uas txwv cov hlab ntshav, ua rau cov hlab ntshav txhaws hauv cov hlab ntsha tawg.
- Ua ib ntus platelet plugs kom tsis txhob los ntshav.
- Secrete procoagulants (cwj pwm) los txhawb cov ntshav txhaws.
- Dissolve cov ntshav txhaws thaum lawv tsis xav tau lawm.
Pom zoo:
Ntawm cov platelets twg yuav tsum Lovenox tuav?
Hauv xyoo 2011, Memorial Sloan Kettering Cancer Center (MSKCC) tau ua raws cov lus qhia hauv qab no hauv qhov teeb tsa no: tswj cov koob tshuaj enoxaparin rau cov ntshav platelets> 50,000/mcL, ib nrab koob tshuaj enoxaparin rau cov ntshav platelets ntawm 25,000-50,000/mcL, thiab tuav anticoagulation rau platelet suav <25,000/mcL
Dab tsi ua rau platelets los ua cov platelets nplaum?
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Yam zaub mov twg yuav tsum zam yog tias koj muaj cov platelets qis?
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