What does "PTT" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
PTT stands for Partial Thromboplastin Time. It is a blood test that helps doctors understand how long it takes for your blood to clot. If your blood clots too quickly or too slowly, it might indicate a medical condition that needs attention. This test is often used to monitor people who are taking blood-thinning medications to make sure the dosage is correct.
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