Activated Partial Thromboplastin Time



As part of an investigation of a possible bleeding disorder or thrombotic episode; to monitor unfractionated (standard) heparin anticoagulant therapy.


When you have unexplained bleeding or blood clotting; when you are on unfractionated (standard) heparin anticoagulant therapy; sometimes as part of a pre-surgical screen.


You can eat and drink normally before the test. You can return to your usual activities immediately.

Laboratory test are essential element of diagnosis, treatment planning and monitoring for every disease.


Contact Information

Phone: (632) 8525-9192 local 142

Clinical Pathology
Elia P. Cabrerra, MD
Chair, Clinical Pathology
Phone: 8525-9192 local 730

Anatomical Pathology
Neila D. Cejudo, MD, FPSP
Chair, Anatomic Pathology
Phone: 8525-9192 local 730

Roengent Dan D. Concepcion, RN, RMT, MBA
Chief Medical Technologist
Phone: 8525-9192 local 681


24 hours a day, 7 days a week

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