Hemoglobin & Hematocrit

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Hemoglobin is a protein in red blood cells that carries oxygen to the body’s tissues. Your blood can be tested for how hemoglobin it contains.

Hematocrit is a blood test that measures the number and size of red blood cells.

Because IBD can often cause an increased loss of blood, many people with IBD have a low hemoglobin and hematocrit. Performing this test will inform the doctor if you are anemic. Anemia can be responsible for fatigue.

Normal values for men

  • Hemoglobin (HgB): 13.5-17.5 mg/dL
  • Hematocrit (HCT): 41%-53%

Normal values for women

  • Hemoglobin (HgB): 12-16 mg/dL
  • Hematocrit (HCT): 36%-44%