Hauv cov txheej txheem kho mob niaj hnub no, kev tso ntshav tau hloov zuj zus los ntawm txoj kev kho mob dav dav mus rau txoj kev kho mob tshwj xeeb rau cov kab mob tshwj xeeb. Lub ntim 14ml feem ntau cuam tshuam nrog tus qauv pib lossis hloov kho tus nqi rau ib txoj kev kho ntshav. Cov koob txhaj tshuaj tshwj xeeb uas tsim los ntshav muaj cov cim nruj, cov qauv kev ua haujlwm, thiab kev saib xyuas kev nyab xeeb rau lawv daim ntawv thov kho mob.

Core Application Areas:

1. Polycythemia vera (PV):Qhov no yog qhov qhia niaj hnub tshaj plaws rau kev kho phlebotomy. Cov neeg mob nrog PV muaj qhov txawv txav ntawm cov qe ntshav liab siab, uas ua rau cov ntshav viscosity nce ntxiv thiab muaj kev pheej hmoo siab ntawm thrombosis. Tsis tu ncua phlebotomy kom tswj cov hematocrit (HCT) nyob rau hauv lub hom phiaj (feem ntau<45% for males and <42% for females) is the basic treatment. The commonly used protocol is 14 ml/kg body weight (usually no more than 500 ml per single session for adults, approximately 350-500 ml), but in practice, 14 ml could refer to the capacity of a single standard collection tube or a reference unit for fractional, small-volume phlebotomy, especially for initial treatment or elderly patients sensitive to volume changes. Specialized phlebotomy needles can be connected to multiple 14 ml capacity vacuum blood collection tubes to achieve precise and controllable volume removal.
2. Hereditary hemochromatosis (HH):Cov neeg mob muaj ntau cov hlau tso rau hauv lawv lub cev. Phlebotomy yog txoj hauv kev ncaj qha thiab zoo tshaj plaws los tshem tawm cov hlau ntau dhau. Hauv thawj theem kev kho mob, feem ntau yog 1 units (kwv yees li 450-500 ml) yog phlebotomized txhua lub lim tiam kom txog rau thaum cov hlau tsis zoo, thiab tom qab ntawd nkag mus rau theem txij nkawm. Thaum lub sij hawm tus txheej txheem no, kev siv cov txheej txheem, precisely sau cov koob thiab cov hnab ntim ntshav yog qhov tseem ceeb rau kev ua kom muaj kev kho mob kom raug thiab saib xyuas kev nyab xeeb.
3. Lwm cov kev qhia thib ob:xws li theem nrab polycythemia (kom txo tau cov tsos mob thaum lub hauv paus ntsiab lus tsis tuaj yeem daws tau tam sim ntawd), qeeb cutaneous porphyria, thiab lwm yam. Qhov tseeb 14 ml ntim ntsuas kuj tau siv hauv kev tshawb fawb soj ntsuam rau cov qauv qauv lossis me me - kev sim tshuaj kho mob.

Cov txheej txheem ua haujlwm thiab cov lus qhia txog kev nyab xeeb:

Kev siv cov ntshav 14ml- kos duab rau kev kho mob tsis yog ib txoj kev rho ntshav yooj yim xwb; nws yuav tsum tau ua raws li cov txheej txheem nruj:

• Kev ntsuam xyuas thiab kev tso cai pom zoo:Ua tib zoo soj ntsuam tus neeg mob cov lus qhia, contraindications (xws li mob ntshav qab zib hnyav, plawv tsis ua haujlwm, hypotension, thiab lwm yam), coagulation muaj nuj nqi, thiab cov cim tseem ceeb. Qhia meej meej rau tus neeg mob txog kev kho lub hom phiaj, txheej txheem, thiab kev pheej hmoo (xws li kiv taub hau, qaug zog, cov tshuaj tiv thaiv vasovagal, hematoma hauv zos, kab mob, thiab lwm yam) thiab tau txais kev tso cai.
• Khoom siv thiab Sterility:Siv cov khoom siv pov tseg, tsis muaj menyuam- ntim cov koob ntim ntshav tshwj xeeb thiab sib txuam, muaj peev xwm -raws li cov hnab ntim cov ntshav tsis muaj menyuam lossis cov hnab ntim khoom. Ua raws li cov txheej txheem kev ua haujlwm aseptic thiab ua kom huv huv ntawm qhov chaw puncture.
• Puncture thiab Monitoring:Feem ntau, cov leeg loj thiab elastic nyob rau hauv lub luj tshib yog xaiv. Lub koob loj (xws li 16G-18G) yuav tsum xyuas kom muaj qhov txaus txaus kom tsis txhob muaj lub sijhawm sau cov ntshav ntev lossis hemolysis vim yog rab koob nyias dhau. Lub puncture yuav tsum tau ua kom du, thiab fixation yuav tsum tau zoo. Thaum lub sij hawm sau cov ntshav, tsis tu ncua saib xyuas tus neeg mob lub ntsej muag, mem tes, ntshav siab, thiab kev xav, tshwj xeeb tshaj yog rau thawj cov kev kho mob lossis cov neeg laus thiab cov neeg tsis muaj zog. Yog tias cov tsos mob ua ntej xws li palpitations, sweats txias, los yog kiv taub hau tshwm sim, tam sim ntawd nres tus txheej txheem, kom tus neeg mob pw, thiab siv cov kev ntsuas tsim nyog resuscitation yog tsim nyog.
• Volume thiab End Point Control:Kev tswj hwm ntawm cov ntshav ntim yog qhov tseem ceeb ntawm kev kho mob. Lub hnab ntim ntshav kaw nrog lub peev xwm ntsuas yog qhov kev xaiv zoo tshaj plaws. Yog tias 14ml yog siv los ua ib qho kev kho me me, kev ntsuas meej yog qhov tsim nyog. Cov ntshav sau ceev yuav tsum tsis txhob ceev heev; Feem ntau, 250-500ml tuaj yeem sau tau hauv 10-15 feeb. Qhov kawg ntawm kev kho mob yog raws li lub hom phiaj HCT tus nqi, tsis yog qhov ntim ruaj khov.
• Kev kho mob tom qab phais:Tom qab muab rab koob tshem tawm, siv lub zog txaus kom tsis txhob los ntshav, thiab saib xyuas qhov chaw puncture. Qhia tus neeg mob kom so ib ntus, ua kom cov kua dej ntxiv, thiab zam kom tsis txhob muaj zog ntawm kev sib tsoo - sab ceg li ntawm 24 teev. Ua tib zoo tuav cov khib nyiab kho mob thiab muab rab koob tso rau hauv lub thawv ntse.

Yog li ntawd, niaj hnub 14ml ntshav- kos duab koob yog ib qho cuab yeej meej rau kev siv cov ntshav meej- kos duab kho. Nws cov txiaj ntsig kho mob tsis yog nyob rau hauv lub cev hloov cov ntshav tawm ntawm lub cev xwb, tab sis kuj tseem ua ke nrog cov txheej txheem txheej txheem, ua kom txoj kev kho thaum ub no los pab kho cov kab mob niaj hnub tshwj xeeb hauv kev ntsuas kom muaj nuj nqis, rov ua dua, thiab muaj kev nyab xeeb heev, cuam tshuam txog kev kho dua tshiab thiab nce qib ntawm cov kev kho mob ib txwm muaj nyob rau hauv lub moj khaum ntawm kev tshawb fawb niaj hnub no.