Final answer:
PT stands for Prothrombin Time, which measures blood clotting time. Thrombocytes are accurately referred to as platelets, essential for blood clotting.
Step-by-step explanation:
The abbreviation PT stands for Prothrombin Time in the context of clotting time measurement. Prothrombin Time is a test that measures how long it takes for blood to clot and is used to diagnose bleeding disorders or the effectiveness of blood-thinning medication.
In regard to the second part of your question, thrombocytes are more accurately called platelets. Platelets play a crucial role in blood clotting and are a component of the blood whose function is to stop bleeding by clumping and forming plugs in blood vessel injuries.