Another test known as the activated partial thromboplastin time (APTT) is also used to evaluate the blood coagulation ability. This test is also known as simply as the partial thromboplastin time (PTT) or sometimes as the partial thromboplastin time with kaolin (PTTK). While the prothrombin time (PT) tests the extrinsic pathway of the coagulation cascade, the partial thromboplastin time (PTT) tests the intrinsic pathway. The results of both tests together will allow for a collective assessment of the functioning of all clotting factors.
The prothrombin time (PT) will reveal deficiencies of factors II, V, VII, X or fibrinogen while the activated partial thromboplastin time (APTT) may indicate deficiencies of factors II, V, VIII, IX, X, XI, XII, fibrinogen deficiency, anti-factor antibodies like lupus anticoagulant.
Another test known as the activated partial thromboplastin time (APTT) is also used to evaluate the blood coagulation ability. This test is also known as simply as the partial thromboplastin time (PTT) or sometimes as the partial thromboplastin time with kaolin (PTTK). While the prothrombin time (PT) tests the extrinsic pathway of the coagulation cascade, the partial thromboplastin time (PTT) tests the intrinsic pathway. The results of both tests together will allow for a collective assessment of the functioning of all clotting factors.The prothrombin time (PT) will reveal deficiencies of factors II, V, VII, X or fibrinogen while the activated partial thromboplastin time (APTT) may indicate deficiencies of factors II, V, VIII, IX, X, XI, XII, fibrinogen deficiency, anti-factor antibodies like lupus anticoagulant.
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