leukocytosis
Noun: 1. A medical condition: An abnormal increase in the total number of white blood cells (leukocytes) circulating in the bloodstream. This condition is typically a physiological response to an underlying issue, such as an infection, inflammation, or other medical disorders.
Leukocytosis is a clinical sign, not a disease itself. It is diagnosed through a laboratory test called a complete blood count (CBC). The term is used primarily in medical contexts by healthcare professionals when discussing laboratory results, patient symptoms, and potential diagnoses. - It is often discussed in relation to its cause (e.g., "leukocytosis due to pneumonia"). - The specific type of white blood cell that is increased can provide clues about the cause (e.g., neutrophilia, lymphocytosis).
- The patient's fever and leukocytosis suggested a bacterial infection.
- A routine blood test revealed significant leukocytosis, prompting further investigation.
- Leukocytosis is a common finding in patients with appendicitis.
- "Leukocytosis" vs. "Leukemia": While leukemia (a cancer of white blood cells) often causes leukocytosis, the term "leukocytosis" itself is broader and includes non-cancerous causes like severe stress or tissue injury. Therefore, leukocytosis does not automatically mean cancer.
- "Leuko-" prefix: The prefix "leuko-" comes from the Greek word "leukos," meaning "white," and is used in many medical terms related to white blood cells (e.g., leukocyte, leukemia).
- Leukocyte (noun): A white blood cell; the type of cell whose count is elevated in leukocytosis.
- Leukopenia (noun): The opposite condition; an abnormally low number of white blood cells in the blood.
- Elevated white blood cell count
- High WBC count
- Leukopenia
- Low white blood cell count
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an abnormal increase in the number of white blood cells in the blood as a result of infection (as in leukemia)
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