PrognoHealth – Corporate Health & Wellness Specialist

Partial Thromboplastin Time (PTT) Test

The Partial Thromboplastin Time (PTT) test is a blood test that measures how long it takes for blood to clot. It is used to evaluate the intrinsic and common pathways of the coagulation cascade, specifically the activity of clotting factors VIII, IX, XI, XII, and high molecular weight kininogen.

Pre-test preparation:

It is important to inform the healthcare provider of any medications being taken as some may affect the results of the test.

Avoid taking aspirin, non-steroidal anti-inflammatory drugs (NSAIDs), or vitamin E supplements for at least one week before the test.

Testing method:

A small sample of blood is taken from a vein in the arm using a needle and syringe.

The sample is then sent to a laboratory for analysis.

Common symptoms for prescribing this test:

  • Unexpected or heavy bleeding
  • Bruising easily
  • Blood in the urine or stool
  • Prolonged bleeding after injury or surgery
  • Prolonged bleeding after tooth extraction
  • Excessive menstrual bleeding
  • Blood clots

Diagnosis:

The PTT test is used to help diagnose and monitor bleeding disorders such as hemophilia and von Willebrand disease, as well as to monitor the effectiveness of treatment for these conditions. Also, it is used to monitor the effectiveness of heparin therapy, a type of anticoagulant medication.

Reference range:

The reference range for PTT test varies depending on the laboratory that performs the test.

Typically, the normal range for PTT test is 25-36 seconds.

However, it is important to note that the reference range can vary depending on the lab that performed the test, the patient’s age, sex, and overall health.

Normal values:

Normal values for PTT test vary depending on the lab that performed the test, but typically fall within the range of 25-36 seconds.

It is important to consult with a doctor or healthcare professional for any questions or concerns regarding the PTT test or any other medical test.

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      • Best health services from different health service providers offered under one umbrella.

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      • Choice & convenience to your employees to avail health services at any of our network centers

      • Customized Health Packages