Lub sijhawm thrombin (TT) thiab lub sijhawm prothrombin (PT) feem ntau yog cov cim qhia txog kev ua haujlwm ntawm cov ntshav coagulation, qhov sib txawv ntawm ob qho no yog nyob rau hauv kev kuaj pom cov yam ntxwv sib txawv ntawm cov ntshav coagulation.

Lub sijhawm thrombin (TT) yog qhov qhia txog lub sijhawm uas yuav tsum tau siv los ntes qhov kev hloov pauv ntawm plasma prothrombin mus rau hauv thrombin. Nws feem ntau yog siv los ntsuas qhov xwm txheej ntawm fibrinogen thiab coagulation factors I, II, V, VIII, X thiab XIII hauv plasma. Thaum lub sijhawm kuaj pom, ib qho nyiaj ntawm cov ntaub so ntswg prothrombin thiab calcium ions raug ntxiv los hloov prothrombin hauv plasma mus rau hauv thrombin, thiab lub sijhawm hloov pauv raug ntsuas, uas yog tus nqi TT.

Lub sijhawm prothrombin (PT) yog qhov ntsuas los ntes cov haujlwm ntawm cov ntshav coagulation factors sab nraum cov ntshav coagulation system. Thaum lub sijhawm kuaj pom, ib qho ntawm cov coagulation factor composition (xws li coagulation factors II, V, VII, X thiab fibrinogen) raug ntxiv los ua kom lub cev coagulation system ua haujlwm, thiab lub sijhawm rau kev tsim cov ntshav txhaws raug ntsuas, uas yog tus nqi PT. Tus nqi PT qhia txog qhov xwm txheej ntawm cov haujlwm coagulation factor sab nraum cov ntshav coagulation system.

Yuav tsum nco ntsoov tias ob qho tib si TT thiab PT tus nqi yog cov cim qhia siv feem ntau los ntsuas kev ua haujlwm coagulation, tab sis ob qho tsis tuaj yeem hloov ib leeg, thiab cov cim qhia kev kuaj pom tsim nyog yuav tsum tau xaiv raws li qhov xwm txheej tshwj xeeb. Tib lub sijhawm, yuav tsum nco ntsoov tias qhov sib txawv ntawm cov txheej txheem kuaj pom thiab cov tshuaj reagents yuav cuam tshuam rau qhov tseeb ntawm cov txiaj ntsig, thiab yuav tsum tau them sai sai rau kev ua haujlwm txheem hauv kev kho mob.