What Does Low MCHC Mean?

Low MCHC means red blood cells are pale (hypochromia) — they have less hemoglobin than normal.

Causes

  • Iron deficiency anemia — most common
  • Thalassemia
  • Chronic inflammation
  • Lead poisoning

Pattern

  • Low MCHC + low MCV = iron deficiency or thalassemia
  • Check ferritin to distinguish
  • High RDW suggests iron deficiency; normal RDW suggests thalassemia
Source: NLM MedlinePlus, American Association for Clinical Chemistry.

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