MCH (Mean Corpuscular Hemoglobin)
MCH (mean corpuscular hemoglobin) measures the average amount of hemoglobin in each red blood cell. It closely parallels MCV — when cells are smaller (low MCV), they typically contain less hemoglobin (low MCH), and vice versa.
Low MCH (hypochromic) is characteristic of iron deficiency anemia and thalassemia. High MCH (hyperchromic) occurs with B12 or folate deficiency because the larger cells contain proportionally more hemoglobin.
While MCH provides useful confirmatory information, it rarely adds diagnostic value beyond what MCV and MCHC already provide. It is most useful in quality control and when confirming the consistency of other CBC indices.
What It Measures
Average mass of hemoglobin per red blood cell, calculated from hemoglobin divided by RBC count.
Reference Ranges
| Status | Range (pg) |
|---|---|
| Optimal | 27–32 pg |
| Normal | 27–33 pg |
| Borderline | 24–27 pg |
| Out of Range | < 24 pg or > 36 pg |
How GATOR Tracks This
Lab Providers
Related Biomarkers
This content is for informational purposes only and does not constitute medical advice. Reference ranges may vary by laboratory and individual factors. Consult a qualified healthcare provider for interpretation of your results and treatment decisions.
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