Details
Back to Test DirectoryCPT Code
85730
Specimen Type
Blood
Container Type
Blue-Sodium Citrate
Stability
Room Temperature, 4 hours; -20°C, 2 weeks
Handling Instructions
Spin within 1 hour; Stored at RT
Clinical Notes
The partial thromboplastin time (PTT; also known as activated partial thromboplastin time (aPTT)) is a screening test that helps evaluate a person’s ability to appropriately form blood clots. It measures the number of seconds it takes for a clot to form in a sample of blood after substances (reagents) are added. The PTT assesses the amount and the function of certain proteins in the blood called coagulation or clotting factors that are an important part of blood clot formation.
Performing Lab
Principle Laboratory - Houston
16840 Buccaneer Ln
Suite 281
Houston, TX 77058
Principle Laboratory - Irving 6210 N Belt Line Rd #170 Irving, TX 75063