White Blood Cell
Differential Count

Also known as: Differential leucocyte count; White blood cell morphology; WBC differential; Diff

Related tests: Full blood count

At a Glance

Why Get Tested?

To diagnose an illness affecting your immune system, such as an infection

When to Get Tested?

As part of a full blood count (FBC), which may be requested for a variety of reasons

Sample Required?

A blood sample taken from a vein in your arm or by a finger-prick (children and adults) or heel-prick (infants)

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This article was last reviewed on May 11, 2004. | This page was last modified on August 3, 2010.

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White Blood Cell Differential Count

At a Glance

Why Get Tested?

When to Get Tested?

Sample Required?

White Blood Cell
Differential Count