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Platelet Distribution Width

The Platelet Distribution Width test is a part of the complete blood count test in which the platelet distribution width is measured.

What is the Platelet Distribution Width?

Platelets are components in the blood that make it clot. They are also known as thrombocytes. The Platelet Distribution Width test is used to find the reason behind excessive bleeding or clotting to diagnose diseases like Acute Coronary Syndrome (ACS).

Why is Platelet Distribution Width suggested?

 

The Platelet Distribution Width test is often conducted as a part of a complete blood count and is carried out when the following signs and symptoms are observed:

  • Unexplained bruising.
  • Wounds that continue to bleed longer than usual.
  • Regular nosebleeds.
  • Internal bleeding of the digestive tract (detectable from a sample of stool).
  • Excessive menstrual bleeding.
  • Petechiae (small red spots on the skin).
  • Purpura (small purple spots on the skin) caused by subcutaneous bleeding.

How is the Platelet Distribution Width test performed?

The Platelet Distribution Width test is performed in the following ways:

  • A lab technician draws blood from a vein in your arm or hand.
  • The blood sample is then sent to a laboratory for analysis.

What are the parameters measured in the Platelet Distribution Width test?

The Platelet Distribution Width test measures the uniformity of the width of platelets or thrombocytes.

Preparation before performing the Platelet Distribution Width test

There is no special preparation necessary for a Platelet Distribution Width test. You need to inform your doctor about any medications you are on.

Post-care after Platelet Distribution Width

There is no post-care necessary after the Platelet Distribution Width test.

Sample types in Platelet Distribution Width

A whole blood sample is required in the Platelet Distribution Width test.

Side effects/risks of the Platelet Distribution Width

The Platelet Distribution Width test has the following risks as blood is drawn:

  • Bleeding.
  • Fainting or dizziness.
  • Hematoma (blood pooling under the skin).
  • Infection (due to the skin being ruptured).

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