Lab Education
Complete Guide to Reading Your CBC Results: Blood Count Interpretation Made Easy
Elabus Team
March 29, 2026
12 min read
Complete Guide to CBC Results
The Complete Blood Count (CBC) is one of the most common blood tests. Understanding your results helps you take control of your health.
What a CBC Measures
Red Blood Cells (RBC) Carry oxygen throughout your body. - Normal Range: 4.5-5.5 million/mcL (men), 4.0-5.0 (women) - High: Dehydration, lung disease, polycythemia - Low: Anemia, blood loss, nutritional deficiencies
Hemoglobin (Hgb) The protein in RBCs that carries oxygen. - Normal Range: 14-18 g/dL (men), 12-16 (women) - High: Dehydration, lung disease, TRT - Low: Anemia, iron deficiency
Hematocrit (Hct) Percentage of blood volume made up of RBCs. - Normal Range: 40-54% (men), 36-48% (women) - High: Risk for clots above 52-54% - Low: Anemia, overhydration
White Blood Cells (WBC) Your immune system soldiers. - Normal Range: 4,500-11,000/mcL - High: Infection, inflammation, leukemia - Low: Immune suppression, viral infections
Platelets Clotting cells. - Normal Range: 150,000-400,000/mcL - High: Inflammation, iron deficiency, blood disorders - Low: Bleeding risk, bone marrow issues
CBC Differential (WBC Types)
- Neutrophils (40-70%): Bacterial infection fighters
- Lymphocytes (20-40%): Viral infection fighters
- Monocytes (2-8%): Cleanup crew
- Eosinophils (1-4%): Allergies, parasites
- Basophils (0-1%): Allergic reactions
Red Flags to Watch
⚠️ Very low hemoglobin (<10 g/dL) ⚠️ Very high WBC (>20,000) ⚠️ Very low platelets (<100,000) ⚠️ Hematocrit >54% (clot risk)
CBC
complete blood count
blood test
hemoglobin
hematocrit
Turn this article into a better next appointment
Reading is useful. Bringing a clearer story is better. E-Labus helps patients organize the actual report, understand what changed, and walk in with sharper questions than generic AI summaries can give.
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