I-Blood Specimen Collection I-Heparin Tube

Inkcazelo emfutshane:

I-Heparin Blood Collection Iityhubhu zinomphezulu oluhlaza kwaye ziqulethe i-lithium eyomileyo, i-sodium okanye i-ammonium heparin kwiindonga zangaphakathi kwaye zisetyenziselwa i-chemistry yekliniki, i-immunology kunye ne-serology. igazi/isampuli yeplasma.


Uvavanyo lweHemorheology

Iithegi zeMveliso

I-Hemorrheology, ikwabizwa ngokuba yi-hemorheology (ukusuka kwisiGrike 'αἷμα,hayi'igazi' kunye ne-rheology, ukusuka kwisiGrike ῥέωRhéō,'flow' kunye -λoγία,-logia'Uphononongo'), okanye i-rheology yegazi, luphononongo lweepropati zokuhamba kwegazi kunye nezinto zalo zeplasma kunye neeseli. Ukuxuba okufanelekileyo kwezicubu kunokwenzeka kuphela xa iimpawu zegazi ze-rheological zingaphakathi kwimigangatho ethile. iinkqubo.I-viscosity yegazi igqitywe yi-plasma viscosity, i-hematocrit (iqhekeza le-volume ye-cell ebomvu yegazi, eyenza i-99.9% yezinto zeselula) kunye neempawu zemishini yeeseli ezibomvu zegazi. Imiqathango ye-erythrocyte deformability kunye ne-erythrocyte aggregation.Ngenxa yoko, igazi liziphatha njenge-non-Newtonian fluid.Ngoko, i-viscosity yegazi iyahluka ngokwezinga le-shear.Igazi liba lincinci kakhulu kumazinga aphezulu e-shear afana nalawo anamava okuhamba okunyukayo njengokuba ngexesha lokuzilolonga. okanye kwi-peak-systole.Ngoko ke, igazi liyi-shear-thinning fluid.Ngokuchaseneyo, i-viscosity yegazi iyanda xa izinga le-shear lihla kunye nokwandisa i-diameter yomkhumbi okanye ukuhamba okuphantsi, njengokuhla komlambo ukusuka kwisithintelo okanye kwi-diastole.I-viscosity yegazi nayo iyanda kunye ukwanda kokudibana kweeseli ezibomvu.

 

I-viscosity yegazi

I-viscosity yegazi ngumlinganiselo wokumelana kwegazi ukuhamba.Isenokuchazwa njengobungqingqwa kunye nokuncamathela kwegazi.Le propathi ye-biophysical iyenza ibe sisigqibo esibalulekileyo sokungqubana ngokuchasene neendonga zenqanawa, isantya sokubuya kwe-venous, umsebenzi ofunekayo ukuze intliziyo impompe igazi, kunye nokuba ingakanani ioksijini ethunyelwa kwizicubu kunye namalungu.Le misebenzi ye-cardiovascular system inxulumene ngokuthe ngqo nokumelana ne-vascular, preload, afterload, and perfusion, ngokulandelelanayo.

Ezona zinto ziphambili kwi-viscosity yegazi yi-hematocrit, ukonakala kweeseli ezibomvu zegazi, ukudityaniswa kweeseli ezibomvu zegazi, kunye ne-plasma viscosity. iiprotheni kwi-plasma.Nakuba kunjalo, i-hematocrit inempembelelo enamandla kwi-viscosity yegazi lonke.Ukunyuka kweyunithi enye kwi-hematocrit kunokubangela ukuya kuthi ga kwi-4% yokwanda kwe-viscosity yegazi.Obu budlelwane buba buthathaka ngakumbi njengoko i-hematocrit inyuka.Xa i-hematocrit inyuka ukuya kuma-60 okanye ama-70%, ehlala iyenza kwi-polycythemiathe viscosity yegazi ingaba mkhulu njenge-10 amaxesha amanzi, kunye nokuhamba kwayo kwimithambo yegazi kakhulu ngenxa yokunganyangeki flow.Oku kuya kukhokelela unikezelo oksijini ehlileyo,Ezinye izinto eziphembelela viscosity igazi ziquka ubushushu, apho ukwanda ubushushu kubangela ukuncipha viscosity.Oku kubaluleke kakhulu kwi-hypothermia, apho ukunyuka kwe-viscosity yegazi kuya kubangela iingxaki zokujikeleza kwegazi.

 

Ukubaluleka kweklinikhi

Izinto ezininzi eziqhelekileyo zomngcipheko we-cardiovascular ziye zadibaniswa ngokuzimeleyo kwi-viscosity yegazi lonke.


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