PTT stands for which coagulation test?

PTT stands for which coagulation test?

• A. Partial Thromboplastin Time
• B. Prothrombin Time Test
• C. Platelet Time Test
• D. Protein Transfer Time

Answer: (A)

Partial Thromboplastin Time measures how long plasma takes to clot after an intrinsic pathway is activated, making it a test of the intrinsic and common coagulation pathways. That’s why this term is the correct match for PTT. It’s especially used to monitor unfractionated heparin therapy and to assess deficiencies in factors VIII, IX, XI, or XII, as well as other issues affecting the intrinsic pathway. The other options don’t fit: Prothrombin Time Test (PT) evaluates the extrinsic pathway and common factors, not the intrinsic pathway. Platelet Time Test isn’t a standard coagulation test, and Protein Transfer Time isn’t a coagulation measure.

Partial Thromboplastin Time measures how long plasma takes to clot after an intrinsic pathway is activated, making it a test of the intrinsic and common coagulation pathways. That’s why this term is the correct match for PTT. It’s especially used to monitor unfractionated heparin therapy and to assess deficiencies in factors VIII, IX, XI, or XII, as well as other issues affecting the intrinsic pathway.

The other options don’t fit: Prothrombin Time Test (PT) evaluates the extrinsic pathway and common factors, not the intrinsic pathway. Platelet Time Test isn’t a standard coagulation test, and Protein Transfer Time isn’t a coagulation measure.