Absolute Basophil Count
- Sample Type
- Standard
- Fasting
- No
- Unit
- x10^9/L
The Absolute Basophil Count (ABC) measures the actual number of basophils circulating in the blood, rather than their percentage relative to other white cells. Basophils are the least common granulocyte and contain granules filled with histamine and heparin. Within a Differential Count, the ABC is a sensitive indicator of type I hypersensitivity reactions and myeloproliferative disorders. Basophils play a critical role in 'priming' the immune response and are often elevated in conditions involving chronic inflammation or bone marrow dysfunction.
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Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
Basophilia (elevated count) is often an early sign of myeloproliferative neoplasms like Chronic Myeloid Leukemia (CML) or Polycythemia Vera, which require specialist hematological review. Conversely, very low counts are difficult to interpret because the normal range starts near zero, necessitating clinical correlation with thyroid function and stress levels.
Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.
Clinical References
Source-of-truth databases and clinical guidelines for Absolute Basophil Count:
Official Sources
Research & Guidelines
- PubMed: Absolute Basophil Count Clinical GuidelinesNCBI / PubMed
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Medically Reviewed by Dr. Binoy Babu, MBBS
Board Certified Doctor • 10+ Years Clinical Experience
Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.
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