What does "WBC" refer to in a blood test?

"WBC" in a blood test specifically refers to "White Blood Cell count." This term indicates the number of white blood cells present in a volume of blood, and it is a critical parameter in evaluating a person's immune system and overall health. White blood cells play a vital role in combating infections and responding to inflammation in the body. A WBC count is often performed as part of a complete blood count (CBC) and can help in diagnosing various medical conditions, including infections, inflammation, and some blood disorders.

Understanding the role of white blood cells is essential for healthcare providers, as any significant increase or decrease in this count can indicate different health issues. For example, a high WBC count may suggest an infection or inflammation, while a low count could indicate issues like bone marrow problems or autoimmune disorders.