Explore All Tests

Explore All Tests contains an organized collection of laboratory test articles — blood, urine, stool, disease-specific and uncategorized tests — explained clearly for patients and students.

WBC Test featured image showing lavender-top blood tube, CBC form with WBC highlighted, and key points about white blood cells.

WBC Test (White Blood Cell Count) – Normal Range, Low & High Causes, Symptoms

What is the WBC Test? The WBC Test (White Blood Cell Count Test) measures the number of white blood cells in your blood. White blood cells are a vital part of the immune system. They fight infections caused by bacteria, viruses, fungi, and parasites.This test is part of the Complete Blood Count (CBC) and helps

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