Platelet Count with Differential Analysis (Automated Hematology)

What Does This Test Measure?

The test includes a **platelet count**, which tells your doctor how many platelets are in your blood. Platelets are tiny blood cells that help stop bleeding. A lower or higher than normal count may indicate conditions like bleeding disorders, infections, or certain cancers. Additionally, the **differential** examines the proportions of different white blood cell types (neutrophils, lymphocytes, monocytes, eosinophils, basophils), which can help identify infections, inflammation, or other immune system issues.

Why Might This Test Be Ordered?

Your doctor may order this test to check for bleeding problems (e.g., from low platelets), monitor treatments for blood disorders, evaluate symptoms like easy bruising or frequent infections, or assess conditions like leukemia or autoimmune diseases. It’s also used in routine check-ups or before surgeries.

How Is the Test Performed?

A small blood sample is drawn from a vein in your arm. The sample is sent to a lab where a machine automatically counts platelets and analyzes the types of white blood cells. No special preparation is needed, but fasting is not required.

What Are Common Results?

Results are reported as a **platelet count** (typically in thousands per microliter) and the **differential percentage** of each white blood cell type. While exact ranges vary by lab, abnormal counts or shifts in cell types may signal underlying health issues.