{"id":194248,"date":"2022-02-08T13:28:41","date_gmt":"2022-02-08T11:28:41","guid":{"rendered":"https:\/\/medicare-group.hu\/laboratory-tests\/laboratory-tests-type\/hematology-coagulation-tests\/aptt-test\/"},"modified":"2025-04-03T12:22:25","modified_gmt":"2025-04-03T10:22:25","slug":"aptt-test","status":"publish","type":"page","link":"https:\/\/medicare-group.hu\/en\/laboratory-tests\/laboratory-tests-type\/hematology-coagulation-tests\/aptt-test\/","title":{"rendered":"APTT test"},"content":{"rendered":"

APTT test<\/h1>\n\t
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APTT (activated partial thromboplastin time) measures the time in seconds until clotting takes place. The test checks the function of the internal as well as the common coagulation cascades. The blood clotting cascade promotes blood clot formation to cover damage of blood vessels and tissues to prevent further blood loss. For proper clot formation to take place, all the components of the blood coagulation cascade must function normally in adequate amounts. If one or more factors are inherited or acquired, or the factors do not function properly, stable clot formation will not occur, which may result in increased bleeding or clotting.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>

What is the purpose of the test?<\/h2>\n\t
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The APTI test examines the function of the internal and common coagulation cascades, respectively. It measures the time, in seconds, until coagulation takes place, from the moment the reagents (a reagent is a compound that reacts with another compound) are added to the plasma (an important component of the blood, which is largely made up of water but also contains proteins, hormones and minerals) in a test tube.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

In which cases is it recommended to perform the test?<\/h2>\n\t
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An APTT may be requested by your doctor in the following cases:<\/p>\n