1. Longa: videri potest in hemophilia A, hemophilia B, morbus hepatis, sterilizatio intestinorum syndrome, anticoagulantia oralis, diffusa coagulatio intravascularis, hemophilia lenis;FXI, FXII deest;sanguis substantiarum anticoagulantium (factor coagulationum inhibitorum, lupus anticoagulantium, warfarin vel heparin) auctus est;ingentes copiae reconditae sanguine transfusae sunt.
2. Abrevia: Videri potest in statu hypercoagulabili, morbis thromboembolicis, etc.
Reference range of normalis valorem
Valor relatio normali thromboplastin temporis partialis reducitur (APTT): 27-45 secundis.