Know Your Blood Parameter : MCH

1. Parameter Name 

Mean Corpuscular Hemoglobin (MCH)

2. Test Type 

Blood

3. Normal Range

• Adults: 27 – 33 picograms (pg) per cell

  
  

4. High Levels Indicate 

Macrocytic anemia — may result from vitamin B12 or folate deficiency, liver disease, or hypothyroidism. Indicates RBCs are larger and carry more hemoglobin.

5. Low Levels Indicate 

Microcytic anemia — commonly caused by iron deficiency or thalassemia. RBCs are smaller and carry less hemoglobin.

6. Why It's Tested 

To help diagnose the type and cause of anemia and to assess hemoglobin content in red blood cells.

7. Associated Symptoms (if abnormal) 

Fatigue, weakness, shortness of breath, cold hands and feet, or pale skin — based on cause of abnormality.

8. What To Do If Abnormal 

Consult a physician for further evaluation. Additional tests may include iron studies, vitamin B12, folate, and reticulocyte count.

9. Common Conditions Related 

Iron-deficiency anemia, thalassemia, vitamin B12 or folate deficiency anemia, liver disease.

10. Nutrition or Lifestyle Connection 

Ensure intake of iron (meat, legumes, seeds), folate (leafy greens, citrus), and vitamin B12 (eggs, dairy, fish). Consider supplements if advised.

11. References (APA Format)

• MedlinePlus. (2023). Mean corpuscular hemoglobin (MCH). U.S. National Library of Medicine. https://medlineplus.gov/lab-tests/mean-corpuscular-hemoglobin-mch/

• Pagana, K. D., & Pagana, T. J. (2021). Mosby’s diagnostic and laboratory test reference (15th ed.). Elsevier.

• Mayo Clinic. (2022). Understanding complete blood count (CBC). https://www.mayoclinic.org/tests-procedures/complete-blood-count