APTT ke khutsufatso ea Senyesemane ea nako ea prothrombin e kentsoeng hanyane.APTT ke teko ea tlhahlobo e bonts'ang tsela ea endogenous coagulation.APTT ea nako e telele e bonts'a hore ntho e itseng ea coagulation ea mali e amehang tseleng ea motho ea endogenous coagulation ha e sebetse.Ka mor'a hore APTT e be nako e telele, mokuli o tla ba le matšoao a hlakileng a mali.Ka mohlala, bakuli ba nang le haemophilia A, haemophilia B le von Willebrand lefu lena kaofela ba tla ba le nako e telele ea APTT, ’me mokuli o tla ba le ecchymosis letlalong le lera la mucous, le ho tsoa mali ha mesifa., ho tsoa mali a kopane, hematoma, joalo-joalo Haholo-holo ho bakuli ba nang le hemophilia A, ho senyeha ha manonyeletso le mesifa ea mesifa e atisa ho sala ka mor'a hore hematoma e kene ka lebaka la synovitis e bakoang ke ho tsoa mali a kopantsoeng, a nang le phello e tebileng bophelong bo botle.Ntle le moo, ho ata ha methapo ea methapo, lefu le matla la sebete le mafu a mang le tsona li tla baka keketseho e kholo ea APTT, e tla baka kotsi e hlakileng 'meleng oa motho.
Boleng bo phahameng ba Apt bo bontša hore mokuli a ka 'na a tšoaroa ke mafu a tsoang mali.Mathata a tloaelehileng a ho tsoa mali a kenyelletsa congenital coagulation factor deficiency le haemophilia.Taba ea bobeli, ho belaelloa hore e bakoa ke lefu la sebete kapa lefu la jaundice kapa lefu la thrombotic.Hape ha e qheleloe ka thoko hore e bakoa ke tšusumetso ea lintlha tsa lithethefatsi, joalo ka tšebeliso ea nako e telele ea lithethefatsi tsa anticoagulant.Clinically, apt test e ka sebelisoa ho ahlola hore na mosebetsi oa coagulation 'meleng oa mokuli o tloaelehile.Haeba e bakoa ke ketsahalo e bakoang ke hemophilia, ho kgothaletswa ho latela keletso ea ngaka ea ho emisa ho tsoa mali kapa ho sebelisa phekolo e rarahaneng ea prothrombin.