Activated Partial Thromboplastin Time (APTT/PTTK)
What does Activated Partial Thromboplastin Time (APTT/PTTK) measure?
Activated Partial Thromboplastin Time (APTT/PTTK) is a blood clotting test that measures how long it takes blood to form a clot through certain clotting pathways. It may be used to help evaluate unexplained bleeding or bruising, investigate possible clotting factor deficiencies, or monitor treatment with unfractionated heparin. Results are interpreted along with symptoms, medical history, and other coagulation tests.
This overview is educational. Use the recorded preparation, sample and lab-partner details below for collection guidance, and confirm any missing information before collection.
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Prices, report times and availability are shown from the catalog records for each eligible partner.
- Sample for analysis
- Whole Blood (3ml)
- Report time
- 11:00/18:00
Preparation and specimen requirements can vary by test and laboratory. Follow the instructions shown for your selected partner and any advice from your healthcare professional.