What Are the Normal Values for a Complete Blood Count (CBC)?
Disease description:
Hello, Doctor. I’ve been feeling extremely unwell over the past few days—constantly dizzy and generally uncomfortable. I have no appetite at all, even for foods I usually enjoy. Could you please help me review my complete blood count (CBC) report? What are the normal reference ranges for CBC parameters?
Doctor's answer (1)
Dr. Li Man
Complete Blood Count (CBC):
Under normal conditions, a CBC includes white blood cells (WBCs), red blood cells (RBCs), hemoglobin (Hb), and platelets.
- Normal WBC count: 4–10 × 10⁹/L
- Normal RBC count: 3.5–5.5 × 10¹²/L
- Normal hemoglobin level: 110–150 g/L
- Normal platelet count: 100–300 × 10⁹/L
Additionally, the differential WBC count should be assessed, particularly the proportions of lymphocytes and neutrophils:
- Lymphocyte percentage: 20–40%
- Neutrophil percentage: ~50%
