WHY PDW IS HIGH

What is PDW?

Platelet distribution width (PDW) is a measure of the variation in the size of platelets in a blood sample. Normal range of platelet distribution width is 10-17 femtoliters (fL). Platelets are small, disk-shaped blood cells that help to stop bleeding by clumping together and forming a clot. They are produced in the bone marrow and have a lifespan of about 10 days. The variation in the size of platelets is influenced by a number of factors including genetics, age, and medical conditions.

How is PDW measured?

PDW is measured using a blood test called a complete blood count (CBC). A CBC measures the number of red blood cells, white blood cells, and platelets in a blood sample. The PDW can be calculated from the size distribution of the platelets.

What causes PDW to be high?

There are a number of conditions that can cause PDW to be high. Some of the most common causes include:

1. Thrombocytopenia

Thrombocytopenia is a condition in which the platelet count is low. This can be caused by a number of factors including bleeding, cancer, and certain medications.

2. Von Willebrand disease

Von Willebrand disease is a bleeding disorder that is caused by deficiency of von Willebrand factor, a protein that helps to platelets adhere to each other.

3. Bernard-Soulier syndrome

Bernard-Soulier syndrome is a rare bleeding disorder that is caused by a defect in the platelet membrane.

4. May-Hegglin anomaly

May-Hegglin anomaly is a rare blood disorder that is characterized by the presence of large platelets and abnormal white blood cells.

5. Platelet transfusion

Receiving a platelet transfusion can cause PDW to be high temporarily.

What are the symptoms of high PDW?

High PDW is often asymptomatic, meaning that it does not cause any symptoms. However, in some cases, high PDW can be associated with bleeding problems such as:

• Easy bruising


• Prolonged bleeding from cuts or wounds


• Nosebleeds


• Heavy menstrual bleeding

How is high PDW treated?

The treatment for high PDW depends on the underlying cause. In some cases, no treatment is necessary. In other cases, treatment may include medications, blood transfusions, or surgery.

Conclusion

High PDW is a condition in which the variation in the size of platelets in a blood sample is increased. This can be caused by a number of conditions, some of which are serious. If you have high PDW, it is important to see a doctor to determine the underlying cause and receive appropriate treatment.

FAQs

1. What is the normal range for PDW?

Normal range of platelet distribution width is 10-17 femtoliters (fL).

2. What are the most common causes of high PDW?

The most common causes of high PDW include thrombocytopenia, Von Willebrand disease, Bernard-Soulier syndrome, May-Hegglin anomaly, and platelet transfusion.

3. What are the symptoms of high PDW?

High PDW is often asymptomatic, but in some cases, it can be associated with bleeding problems such as easy bruising, prolonged bleeding from cuts or wounds, nosebleeds, and heavy menstrual bleeding.

4. How is high PDW treated?

The treatment for high PDW depends on the underlying cause. In some cases, no treatment is necessary. In other cases, treatment may include medications, blood transfusions, or surgery.

5. What is the prognosis for high PDW?

The prognosis for high PDW depends on the underlying cause. In most cases, the prognosis is good.