PTT (APTT)

About This Test
APTT checks the “intrinsic” clotting pathway. It’s used before procedures, for unexplained bleeding, or to monitor heparin therapy.

Patient Preparation
Fasting not required. Follow specific doctor instructions.

Best Time to Test
Anytime

Tests Included
PTT (APTT)

Why is it done
Part of targeted screening based on symptoms or risks.
Helps confirm or rule out suspected conditions.
Guides treatment decisions and follow‑up.
Sometimes used to monitor response to therapy.