Leukocyte Filter

Specimen Required

NONE

Fasting Required

Purpose of the Test

The leukocyte filter test is not a diagnostic test for a specific medical condition. It is a test to ensure that blood products are free of white blood cells to prevent transfusion reactions.

When this test is required

The use of leukocyte filters is standard practice in blood transfusions. Healthcare providers who perform transfusions order leukocyte filters as part of the blood product preparation process to reduce the risk of transfusion complications.

What the Test Detects

The test is not performed on a patient’s blood sample but rather on blood products such as packed red blood cells, platelets, or plasma. The leukocyte filter test determines the effectiveness of the filter in removing white blood cells from the blood product.

Preparation for the Test

There is no specific preparation required for this test.

Sample Requirements

No sample is required for the patient undergoing transfusion. However, a sample of the blood product may be taken before and after filtration to determine the effectiveness of the leukocyte filter.

Additional Notes

Leukocyte filters are safe and effective in reducing the risk of transfusion-associated complications. They are routinely used in blood transfusions, and there is no additional risk to the patient associated with their use.

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